Chapter GROUP 3F

PL7004

Electrical or electronic equipment, whether or not separately specified in an entry in this Schedule, in respect of which a certificate has been issued to the knowledge of the exporter by or on behalf of the Secretary of State to the effect that the equipment to which the certificate relates meets or has been modified or designed to meet government standards concerned with the limitation of compromising electromagnetic radiation

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IL1501

Navigation, direction finding, radar and airborne communication equipment and technology, the following–

• (a) Airborne communication equipment having any of the following characteristics: and specially designed components and specially designed ODMA software therefor,

• (1) designed to operate at frequencies greater than 156 MHz

• (2) incorporating facilities for–

• (i) the rapid selection of more than 200 channels per equipment; or

• (ii) equipment using frequency synthesis techniques

• except equipment operating in the frequency range of 108 to 137 MHz with 760 channels or fewer at not less than 25kHz spacing, and which has been in normal civil use for at least one year;

• (3) rated for continuous operation over a range of ambient temperatures extending from below −55°C to above +55°C

• (4) designed for modulating methods employing any form of digital modulation using time and frequency redundancy such as Quantized Frequency Modulation (QFM)

• except–

• equipment which does not have the characteristics referred to in sub-head (a)(4) above and

• (a) is to equip civil aircraft, or

• (b) is normal standard equipment incorporated in civil aircraft.

• (b) Navigation and direction finding equipment and technology, the following and specially designed components and specially designed ODMA software and specialised testing, calibrating and training/simulating equipment therefor–

  • (1) airborne navigation equipment and direction finding equipment and technology, the followingt–

    • (i) equipment designed to make use of Doppler frequency phenomena, except nagivation equipment to be installed in civil aircraft or civil helicopters, and which is normal standard equipment of a type installed in civil aircraft or civil helicopters

• (ia) technology for navigation equipment using Doppler frequency phenomena

• (ii) equipment utilising the constant velocity or the rectilinear propagation characteristics of electro-magnetic waves having frequency less than 4 × 10¹⁴ Hz (0.75 micrometres)

• except–

• (a) standard commercial airborne equipment needed to equip civil aircraft or civil helicopters or as normal standard equipment incorporated in civil aircraft or civil helicopters being exported for civil commercial use provided such equipment is in conformity with ICAO standards and assures no functions exceeding those resulting from such standards, is not designed to make use of hyperbolic grids at frequencies greater than 3 MHz;

  Note: Normal standard equipment includes Marker beacons ILS, VOR (OMNI), Omega, Loran A and B; or

• (b) Loran C equipment having all of the following characteristics:

  • (a) it has been in normal civil use for a period of more than one yhear;

  • (b) it is standard commercial equipment:

    • (1) needed to equip civil aircraft or civil helicopters; or

    • (2) incorporated in civil aircraft or civil helicopters;

  • (c) it is equivalent in all characteristics and performances to standard equipment of aircraft not specified in entry IL1460 in Group 3E;

  • (d) it is in conformity with ICAO standards;

  • (e) it is not designed to make use of hyperbolic grids at frequencies higher than 3 MHz;

  • (f) it does not contain electronic equipment which:

    • (1) can compute the position of the aircraft in one co-ordinate system when furnished position information in another co-ordinate system (namely co-ordinate conversion equipment);

    • (2) is specified in entry IL1565 in Group 3G;

    • (3) has been in normal civil use for a period of less than one year

    or

  • (c) direction finding equipment specially designed for search and rescue purposes and operating at a frequency of 121.5 MHz or 243 MHz, and personal locator beacons operating in this form (which may also have an additional channel selectable for voice mode only);

• (iii) radio altimeters, the following–

• (a) pulse modulated

• (b) frequency modulated having a displayed electrical output accuracy better than ±0.914 m over the range between 0 and 30.4 m or better than ±3% above 30.4 m

• except–

• standard commercial airborne equipment needed to equip civil aircraft or civil helicopters or as normal standard equipment incorporated in civil aircraft or civil helicopters being exported for civil commercial use, provided such equipment is equivalent in all charcteristics and performance to standard equipment of aircraft not specified in entry IL1460 in Group 3E, and which are frequency-modulated radio altimeters which have been in normal civil use for a period of more than one year;

• (c) frequency modulated which have been in normal civil use for less than one year

• (iiia) technology for radio altimeters referred to in sub-head (b)(1)(ii)(b) above even when excluded from that sub-head

• (iv) direction finding equipment operating at frequencies greater than 5 MHz

• (v) equipment rated for continuous operation over a range of ambient temperatures extending from below −55°C to above +55°C

• (2) Ground and marine equipment for use with airborne navigation equipment utilising the constant velocity or the rectilinear propagation characteristics of electro-magnetic waves having a frequency less than 4 × 10¹⁴ Hz (0.75 micrometres)

• except–

• ground and marine equipment for use with airborne navigation equipment using the constant velocity or rectilinear propagation characteristics of electro-magnetic waves having a frequency less than 4 ×10¹⁴ (wavelength 0.75 micrometre), provided, in the case of ground equipment, it is for use at civil airports or for civil use in association with civil airborne equipment, and–

  • (1) is in conformity with ICAO standards and assures no function exceeding those resulting from such standards; and

  • (2) is not designed to make use of hyperbolic grids at frequencies greater than 3 MHz;

• (3) ground and marine direction finding equipment operating at frequencies greater than 30 MHz

• equipment, other than single side band equipment, operating at frequencies up to 157 MHz and employing a loop system or a system employing a number of spaced vertical aerials uniformly disposed around the circumference of a circle, excluding electronically commutated types;

• (4) timing receivers whose only function is automatically providing time derived from satellite signals to within 1 millisecond of universal Co-ordinate Time (UCT) or better

• (5) ground or marine navigation and geodetic positioning systems designed for use with satellite-provided timing positioning or navigation information

• except–

• equipment which can only be used with TRANSIT satellite systems or other systems not also specified elsewhere in this Schedule, and which is also not specified in sub-head (b)(4) above. There shall be excluded from sub-heads (b)(4) and (5) global positioning satellite receivers which have all of the following characteristics:

  • (1) capable only of processing the L1 channel (also called the Standard Positioning Service (SPS channel));

  • (2) capable of only the Short-Term Code (Coarse Acquisition Code (C/A)) code with short term generation cycle;

  • (3) no decryption capabilities;

  • (4) including no cesium beam standards; and

  • (5) including no null steerable antennae

• (c) Radar equipment and specially designed components, specialised testing, calibrating and training/simulating equipment and specially designed software therefor, the following–

  • (1) airborne radar equipment

• airborne civil weather-radar conforming to international standards for civil weather radar provided it does not include any of the following characteristics–

  • (a) phased array antennas;

  • (b) frequency agility;

  • (c) spread spectrum; or

  • (d) any signal processing specially designed for tracking of vehicles.

• (2) ground and marine radar equipment, the following–

• (i) equipment operating at a frequency not in normal civil use or at a frequency of more than 10.5 GHz

• (ii) equipment operating at a frequency of less than 1.5 GHz and having a peak output power from the transmitter greater than 2.5 MW; or operating at a frequency witin the range of 1.5 to 3.5 GHz and having a peak output power from the transmitter greater than 1.5 MW; or operating at a frequency within the range of 3.5 to 6 GHz and having a peak output power from the transmitter greater than1 MW; or operating at a frequency within the range of 6 to 10.5 GHz and having a peak output power from the transmitter greater than 500 kW

• (iii) equipment operating at a frequency of less than 3.5 GHz and having an 80 per cent or better probability of detection for a 10 sq.m. target at a free space range of 250 nautical miles; or operating at a frequency within the range of 3.5 to 10.5 GHz and having an 80 per cent or better probability of detection for 10 sq.m. target at a free space range of 100 nautical miles

• (iv) equipment utilising other than pulse modulation with a constant or staggered pulse repetition frequency, in which the carrier frequency of the transmitted signal is not changed deliberately between groups of pulses, from pulse to pulse, or within a single pulse

• except commercial civil airport radar using a carrier frequency that may change from pulse to pulse between two fixed frequencies separated in time and in frequency by constant magnitudes

• (v) equipment utilising a Doppler technique for any purpose other than M.T.I. systems using a conventional double or triple pulse delay line cancellation technique

• except those utilised for surveillance and control radar for aerial navigation in civil airports

• (vi) equipment including any digital signal processing techniques used for automatic target tracking, or having a facility for electronic tracking

• (vii) equipment including signal processing techniques (other than those specified in sub-head (c)(2)(vi) above, which have been in normal civil use for a period of less than two years)

• (viii) equipment ground radar, having been in commercial use for a period of less than one year

There shall be excluded from head (c), secondary radar equipment specially designed for civil air traffic identification and control purposes.

The following shall be excluded from this entry–

• (a) equipment assemblies for civil marine automatic radar plotting aids or electronic relative motion analyzers designed to achieve the requirements published by the International Maritime Organization in accordance with the Safety of Life at Sea (SOLAS) Conventions, provided the designed tracking speeds do not exceed relative values of greater than 150 knots (77.1 metres/second);

• (b) ground radar of the hand-held and automobile-mounted type used for vehicle speed monitoring by police authorities and operating in the frequency band from 10.5 to 10.55 GHz;

In this entry the terms “civil aircraft” and “civil helicopters” include only those types of civil aircraft and civil helicopters which are listed by designation in published airworthiness certification lists by any civil aviation authority to fly commercial civil internal and external routes or for normal civil, private or business use.

Communication, detection or tracking equipment of a kind using ultra-violet radiation, infrared radiation or ultrasonic waves, and specially designed components and specially designed software therefor

• (1) the following ultrasonic devices–

• (a) operating in contact with a controlled material to be inspected;

• (b) used for industrial cleaning, sorting or materials handling;

• (c) used for emulsification;

• (d) used for homogenisation;

• (e) used in simple educational devices;

• (f) used in simple entertainment devices;

• (2) underwater ultrasonic communications systems which do not have any of the following–

• (a) electronic beam steering;

• (b) encryption techniques; or

• (c) a carrier frequency outside the range from 20 to 60 kHz;

• (3) the following equipment–

• (a) industrial equipment employing cells not specified in the entry IL1548;

• (b) industrial and civilian intrusion alarm, traffic and industrial movement control and counting systems;

• (c) medical equipment;

• (d) industrial equipment used for inspection, sorting or analysis of the properties of materials;

• (e) simple educational devices which employ photocells;

• (f) simple devices for entertainment or for home use which employ photocells;

• (g) flame detectors for industrial furnaces;

• (h) equipment for non-contact temperature measurement for laboratory or industrial purposes using a single detector cell with no scanning of the detector;

• (i) instruments capable of measuring radiated power or energy having a response time constant exceeding 10 ms;

• (j) equipment designed for measuring radiated power or energy for laboratory, agricultural or industrial purposes, using a single detector cell with no scanning of the detector, and single detector cell assemblies or probes specially designed therefor, having a response time constant exceeding 1 microsecond;

• (k) infrared geodetic equipment, provied that equipment uses a lighting source other than a laser and is manually operated, or uses a lighting source (other than a laser or a light-emitting diode) remote from the measuring equipment;

• (l) infrared communication equipment with characteristics not exceeding those referred to in entry IL1519;

• (4) the following equipment–

• (a) infrared thermal imaging equipment having all the following characteristics:

• (1) the detector is a single element;

• (2) the detector is neither a charge coupled device (CCD) nor an integrate-while-scan device;

• (3) the detector is either:

• (i) not cooled; or

• (ii) cooled by using a liquid nitrogen Dewar vessel; and

• (4) the equipment is:

• (i) non-ruggedised, medical equipment; or

• (ii) has both of the following:

• (a) a resolution not exceeding 22,500 resolvable elements; and

• (b) a Noise Equivalent Temperature Difference (NETD) (or temperature sensitivity) of no less than 1K;

• (b) infrared viewing equipment having all the following characteristics:

• (1) the detector is a pyroelectric vidicon without reticle;

• (2) the equipment is designed for fire fighting and buried body detection; and

• (3) the optimal sensitivity is in the wavelength range from 8 to 14 micrometers.

Note: This entry includes infrared or ultra-violet sensing devices not specified in Group 1 of Part II of this Schedule and which contain image intensifiers specified in entry IL 1555 in this Group.

• (A) Wide swath bathymetric survey systems capable of both of the following

• (a) Measuring depths of more than 300 m below the water surface; and

• (b) Taking measurements at an angle exceeding 10° (0.175 rad) from the vertical

• (B) Object detection or location systems having any of the following characteristics–

• (a) Transmitting frequency below 15 kHz

• (b) Sound pressure level exceeding 224 dB (reference 1 micropascal at 1 metre) for equipment with an operating frequency at or above 15 kHz and at or below 24 kHz

• (c) Sound pressure level exceeding 235 dB (reference 1 micropascal at 1 metre) for equipment with an operating frequency exceeding 24 but not exceeding 30 kHz

• (d) Transmission bandwidth exceeding ± 10% of the design centre frequency

• (e) Designed to withstand pressure during normal operation at depths exceeding 1 km;

• or

• (f) Capable of measuring distances over 5 km

• (C) Acoustic projectors, including transducers, incorporating piezoelectric, magnetostrictive, electrostrictive, electrodynamic or hydraulic elements operating individually or in a designed combination, other than specially designed components for equipment described elsewhere in this entry, and having any of the following characteristics–

• (a) An instantaneous radiated acoustic power density exceeding 10 W/m² /Hz for devices operating at frequencies below 100 kHz

• (b) A continuously radiated acoustic power density exceeding 1 W/m² /Hz

for devices operating at frequencies below 100 kHz

• (c) Designed to withstand pressure during normal operation at depths exceeding 1 km

• (d) Projecting sound with a beamwidth less than 3° (0.0524 rad) for devices operating at frequencies below 100 kHz

• or

• (e) With side-lobe suppression exceeding 22 dB

• (D) Acoustic systems or equipment for determining the position of surface or underwater vehicles, having any of the following characteristics–

• (a) Capable of processing responses from more than eight beacons in the calculation of a point

• (b) Using coherent signal processing between two or more beacons and the hydrophone unit carried by surface or underwater vehicle

• (c) Having devices for automatically correcting speed-of-sound propagation errors for calculation of a point

• (d) Capable of operating at a range of more than 1 km with a positional accuracy of within 20 m or better when measured at a range of 1 km

• (e) Having transducers, acoustic modules or hydrophones designed to withstand pressure at depths exceeding 1 km

• or

• (f) Having beacons with either of the following characteristics–

• (1) Designed to operate normally at depths exceeding 1 km

• or

• (2) Synchronised with each other using sing-around or other self-calibrating techniques

• (A) Hydrophones or transducers having either–

• (a) Continuous flexible sensors or assemblies of discrete sensors with dimensions under 20 mm which approximate a continuous flexible sensor

• or

• (b) Sensors made of materials other than magnetostrictive nickel-iron alloys or rigid piezoelectric ceramics or crystals

• (B) Hydrophones or transducers incorporating sensors made of rigid piezoelectric ceramic or crystals and having any of the following characteristics–

• (a) A sensitivity better than −180 dB at any depth with no acceleration compensation

• (b) A sensitivity better than −192 dB with acceleration compensation

• (c) A sensitivity better than −204 dB when designed for normal operation at depths exceeding 100 m

• or

• (d) Designed for operation at depths exceeding 1 km

• (C) Towed acoustic hydrophone arrays having any of the following characteristics–

• (a) Operating at dephs exceeding 100 m

• (b) Operating at tow speeds over 14.8 km/hour

• (c) Using heading sensors–

(1) Incorporated within the array hosing

• (2) Having an accuracy within ± 0.5° (0.0087 rad)

• (d) Hydrophone groups uniformly spaced at less than 25m

• (e) An assembled array diameter under 40 mm

• (f) Using other than metallic strength members

• (g) Multiplexed hydrophone group signals

• (h) A configuration for multiple or overlapping acoustic aperture operation

• (i) Hydrophone characteristics specified in sub-head (a)(2)(A) or (B)

• or

• (j) Longitudinally reinforced array-hoses

• (D) Processing equipment specially designed for acoustic hydrophone or geophone arrays, having any of the following characteristics–

• (a) Electronically-steerable beamforming capabilities

• (b) Side-lobe suppression techniques

• (c) Real-time at-sea capability to integrate seismic acoustic data received from two or more arrays

• (d) Cancellation of array flow or acceleration noise

• (e) Either of the following features provided it has user-accessible programmability–

• (1) Fast Fourier Transform of 1,024 complex points in less than 40 ms

• or

• (2) An equivalent multiply rate exceeding 800,000 operations per second

• or

• (f) User-accessible programmability for–

• (1) Time domain processing and correlation

• or

• (2) Frequency domain processing and correlation, including spectral analysis, digital filtering and beamforming using Fast Fourier or other transforms or processes

• (b) Terrestrial systems or equipment having either of the following characteristics–

• (1) Capable of conversion by the user to underwater or marine applications specified in this entry

• or

• (2) Employing geophones or other transducers specified in this entry

In this entry–

• “acoustic power density” is obtained by dividing the output acoustic power by the product of the area of the radiating surface and the frequency of operation;

the sensitivity of a hydrophone is defined as 20 times the logarithm to the base 10 of the ratio of rms output voltage to a 1 V reference, when the hydrophone sensor, without a pre-amplifier, is placed in a plane wave acoustic field having an rms pressure of 1 micropascal.

IL1516

Receivers, the following: and specially designed components, accessories and specially designed ODMA software therefor–

• (a) Digitally controlled radio receivers (whether or not computer controlled) which–

• (1) search or scan automatically a part of the electromagnetic spectrum, and indicate or identify the received signals; and

• (2) complete the switching operation in less than 4.5ms

except–

non-ruggedised, pre-set radio receivers designed for use in civil communications which have 1,000 selective channels or fewer;

• (b) Receivers for spread spectrum and frequency agile systems, having a total transmitted bandwidth which is–

• (1) 100 or more times the bandwidth of any one information channel; and

• (2) in excess of 50 kHz

• (c) Receivers which incorporate digital signal processing

except–

receivers which are specially designed for internationally allocated civil frequency bands only and which do not permit user-accessible programmability of the digital signal processing circuits.

In this entry–

• “spread spectrum” means the technique whereby energy in a narrow-band communication channel is spread over a much wider energy spectrum under the control of a random of pseudo-random bit stream; on receipt, the signal is correlated with the same bit stream to achieve the reverse process of reducing the bandwidth to its original form; by allocating different bit streams to different subscribers transmitting simultaneously, significantly greater use can be made of available bandwidth;

• “frequency agility” means a system in which the transmission frequency of a single communication channel is made to change by discrete steps under the control of a similar bit stream (sometimes known as frequency hopping).

IL1517

Radio transmitters, the following: and specially designed components therefor–

• (a) Transmitters or transmitter-amplifiers designed to operate at output frequencies greater than 960 MHz

• (b) Transmitters or transmitter-amplifiers designed to provide any of the following features–

• (1) any system of pulse modulation (this does not include amplitude, frequency or phase-modulated televisions or telegraphic transmitters or pulse-width modulated sound broadcasting transmitters)

• (2) rated for operation over a range of ambient temperatures extending from below −40°C to above + 60°C

• (c) Transmitters for spread spectrum and frequency agile systems having a total transmitted bandwidth which is–

• (1) 100 or more times greater than the bandwidth of any one information channel; and

• (2) in excess of 50 kHz;

There shall be excluded from this entry transmitters or transmitter-amplifiers, or systems containing such equipment, accessories and sub-assemblies therefor, with any of the following characteristics–

• (i) specially designed for medical applications and operating at ISM frequencies;

• (ii) having an output power of not more than 10 W, which are specially designed for–

• (1) industrial or civil intrusion detection and alarm;

• (2) industrial and traffic detection, counting, speed measurement, identification and movement control; or

• (3) carrying information from equipment within paragraph (a) or (b)(1) or (b)(2) to this exception or the information from environmental, air or water pollution detection or measurement systems.

• (iii) transmitters using wideband amplifiers designed for non-frequency agile civil applications.

For the purposes of this entry “spread spectrum” and “frequency agile” are as defined in entry IL1516 above.

PL7003

Burst transmitters and associated receiving equipment (except simple on-line morse or other data signal convertors or standard items of ADP equipment) and specialized assemblies, sub-assemblies and components therefor

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In this entry a “burst transmitter” is any electronic equipment or device for use with radio or other communications systems, whether part of a transmitter or modulation device or ancillary to it, which has a capability to accept and store data (telegraphic, speech or other) and to transmit these at transmission speeds/bit rates which are multiples of the input keying speed/bit rates, the purpose or effect of which is to reduce total message duration time and thus to evade detection by other than the intended recipient.

PL7020

Telemetering and telecontrol equipment suitable for use with aircraft (piloted or pilotless), space vehicles or weapons (guided or unguided), and specially designed test equipment therefor

except–

equipment specially designed to be used for remote control of model planes, boats or vehicles and having an electric strength of not more than 200 microvolts per metre at a distance of 500 metres.

IL1519

Telecommunication transmission equipment, measuring and test equipment, the following: and specially designed components, accessories and specially designed ODMA software therefor–

• (a) Telecommunication transmission equipment employing digital techniques (including the digital processing of analogue signals) and having any of the following characteristics–

• (1) designed for a total digital transfer rate which, at the highest multiplex level, exceeds–

• (A) 45 Mbit/s

• (B) 8.5 Mbit/s, in the case of stored programme controlled digital cross-connection equipment

• or

• (C) 90 Mbit/s, to take account of line coding and overhead, for:

• (a) line terminating equipment

• (b) intermediate amplifier equipment

• (c) repeater equipment

• (d) regenerator equipment

• (e) translation encoders (transcoders)

• (2) designed for a data signalling rate which exceeds–

• (A) 9,600 bit/s, when using the bandwidth of one voice channel

• or

• (B) 64,000 bit/s, when using baseband

• or

• (3) employing a laser having a transmission wavelength exceeding 1,000nm

• (b) Telecommunication transmission equipment employing lasers and any of the following techniques–

• (1) in the case of equipment which has a bandwidth which exceeds 45 MHz or an operating wavelength longer than 1,370 nm, analogue techniques

• (2) optical heterodyne or homodyne detection techniques (also called coherent optical transmission techniques)

• or

• (3) wavelength division multiplexing techniques

• (c) Electronic measuring or test equipment, including bit error rate test sets, specially designed for equipment designed for the total digital transfer rate specified in sub-head (a)(1) above

• (d) Technology for the development or production of equipment employing digital transmission techniques for operation at a total digital transfer rate at the highest multiplex level exceeding 8.5 Mbit/s

There shall be excluded from this entry:

• (a) telemetering, telecommand and telesignalling equipment designed for industrial purposes (being sensing heads for the conversion of information into electrical signals, and for the systems used transmitting these electrical signals long distances and translating them into coded data, into control signals and into display signals);

• (b) facsimile equipment not specified by entry IL1527 in Group 3F;

• (c) equipment employing exclusively the direct current transmission technique.

In this entry:

• “data signalling rate” has the meaning as in entry IL1567 in Group 3G;

• “telecommunication transmission equipment” means equipment which is–

• (a) any, or any combination, of the following:

• (1) line terminating equipment;

• (2) intermediate amplifier equipment;

• (3) repeater equipment;

• (4) regenerator equipment;

• (5) translation encoders (transcoders);

• (6) multiplex equipment;

• (7) modulators or demodulators (modems);

• (8) transmultiplex equipment; or

• (9) stored programme controlled digital cross-connection equipment; and

• (b) designed for use in single or multi-channel communication via:

• (1) wire (line);

• (2) coaxial cable;

• (3) optical fibre cable; or

• (4) electromagnetic radiation.

IL1520

Radio relay communication equipment, specially designed test equipment, software and technology, the following: and specially designed components and accessories therefor–

• (a) Radio relay communication equipment designed for use at frequencies exceeding 960 MHz

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• except–

• (1) microwave radio links for fixed civil installations, which–

• (A) employ analogue transmission; and

• (B) are designed for operation at fixed frequencies not exceeding23.6 GHz;

• (2) microwave radio links which

• (A) employ digital transmission techniques;

• (B) are designed for operation at a total digital transfer rate not exceeding 45 Mbit/s or, taking into account line coding and overhead, 90 Mbit/s;

• (C) if the total digital transfer rate exceeds 8.5 Mbit/s, do not employ quadrature-amplitude-modulation (QAM) techniques above level 4; and

• (D) operate at fixed frequencies not exceeding 23.6 GHz;

• (3) ground communication radio equipment designed for civil use with temporarily fixed services and at fixed frequencies not exceeding23.6 GHz with a power output of not more than 5W;

• (4) civil sound or television broadcast receiving stations for satellite reception, which–

• (A) are designed to comply with ITU standards;

• (B) are specially designed for use at fixed frequencies allocated by the International Telecommunications Union (ITU) for civil television or sound radio satellite broadcasting; and

• (C) operate at frequencies not exceeding 31 GHz;

• (5) equipment which is–

• (A) specially designed for the transmission of television signals; and

• (B) operates at frequencies not exceeding 23.6 GHz;

• (6) equipment which is–

• (A) specially designed to be installed and operated in satellite earth stations for the following civil uses–

• (a) communication and direct broadcast;

• (b) telemetry-tracking-and-command; or

• (c) weather or meteorological purposes; and

• (B) designed for an operating frequency not exceeding 31 GHz;

• (b) Tropospheric scatter communication equipment

except–

equipment which has all the following characteristics, namely, that it:

• (1) is designed for fixed civil use;

• (2) operates at fixed frequencies of 2.7 GHz or less;

• (3) uses frequency modulation; and

• (4) has a power amplifier output of 10 kW or less;

• (c) Stand-alone radio transmission media simulators or channel estimators and specially designed ODMA software therefor, specially designed for testing equipment specified in head (a) or (b) above

• except–

• equipment in which the adjustments can only be made manually;

• (d) Technology:

• (1) for equipment employing quadrature-amplitude-modulation (QAM) techniques or otherwise specified in head (a) above

• except–

• technology for equipment employing quadrature-amplitude-modulation techniques, where such technology is for the installation, operation or maintenance of such equipment;

• (2) for equipment specified in paragraph (6) of the exception to head (a) above

• except–

• technology for the installation, operation or maintenance of such equipment;

• (3) for equipment excluded from this entry by paragraph (1) or (2) below

• except–

• technology for the installation, operation or maintenance of such equipment;

There shall be excluded from this entry–

• (1) equipment for civil television transmission or for general commercial traffic, which–

• (a) is not designed for operation at a total digital transfer rate exceeding 45 Mbit/s;

• (b) does not employ quadrature-amplitude-modulation (QAM) techniques; and

• (c) has a maximum operating frequency not exceeding 23.6 GHz;

• (2) analogue microwave transmission equipment for civil industrial use (for example, remote supervision, control and metering of oil and gas pipelines, use in electricity networks and other civil public utility services including use in telephone channels for the operation of electricity networks and in the engineering service circuits required for the maintenance of telecommunication links), provided the maximum operating frequency does not exceed 23.6 GHz.

PL7008

Tropospheric scatter communication equipment using analogue or digital modulation techniques

L,I

IL1522

• (1) Excimer lasers having any of the following characteristics–

• (A) An output wavelength not exceeding 150 nm and having either of the following characteristics–

• (a) An output energy exceeding 50 mJ per pulse

• or

• (b) An average or continuous wave (CW) output power exceeding 1 W

• (B) An output wavelength exceeding 150 nm but not exceeding 190 nm and having either of the following characteristics–

• (a) An output energy exceeding 1.5 J per pulse

• or

• (b) An average or CW output power exceeding 120 W

• (C) An output wavelength exceeding 190 nm but not exceeding 360 nm and having either of the following characteristic–

• (a) An output energy exceeding 5 J per pulse

• or

• (b) An average or CW output power exceeding 500 W

• (D) An output wavelength exceeding 360 nm and having either of the following characteristics–

• (a) An output energy exceeding 1.5 J per pulse

• or

• (b) An average or CW output power exceeding 30 W

• (2) Metal vapour lasers, the following–

• (A) Copper (Cu) lasers with an average or CW output power exceeding 20 W

• (B) Gold (Au) lasers with an average or CW output power exceeding5

• (C) Sodium (Na) lasers with an output power exceeding 5 W

• (3) Carbon monoxide (CO) lasers having either of the following characteristics–

• (A) An output energy exceeding 2 J Per pulse and a pulsed peak power exceeding 5,000 W

• or

• (B) An average or CW output power exceeding 5,000 W

• (4) Carbon dioxide (CO² ) lasers having any of the following characteristics–

• (A) A CW output power exceeding 10 kW

• (B) A pulsed output with a pulse duration exceeding 10 microsecond and having either of the following characteristics–

• (a) An average output power exceeding 10 kW

• or

• (b) A pulse peak power exceeding 100 kW

• (C) A pulsed output (including those which run in a CW mode with pulses superimposed) with a pulse duration not exceeding 10 microsecond but exceeding 500 ns and having either of the following characteristics–

• (a) A pulse energy exceeding 5 J

• or

• (b) An average output power exceeding 1.2 kW

• (D) A pulsed output with a pulse duration not exceeding 500 ns and having either of the following characteristics–

• (a) A pulse energy exceeding 2 J

• or

• (b) An average output power exceeding 1.2 kW

• (5) Chemical lasers, the following–

• (A) Hydrogen Fluoride (HF) lasers

• (B) Deuterium Fluoride (DF) lasers

• (C) Oxygen Iodine (O² I) lasers

• (6) Gas discharge and ion lasers, the following–

• (A) Nitrogen lasers with either of the following characteristics–

• (a) An output energy exceeding 1.5 J per pulse and a pulsed peak power exceeding 120 W

• or

• (b) An average or CW output power exceeding 120 W

• (B) Krypton ion or argon ion lasers with either of the following characteristics–

• (a) An output energy exceeding 1.5 J per pulse and a pulsed peak power exceeding 30 W

• or

• (b) An average or CW output power exceeding 30 W

• (7) Other gas lasers having any of the following characteristics–

• (A) An output wavelength not exceeding 150 nm and having either of the following characteristics–

• (a) An output energy exceeding 50 mJ per pulse and a pulsed peak power exceeding 1 W

• or

• (b) An average or CW output power exceeding 1 W

• (B) An output wavelength exceeding 150 nm but not exceeding 800 nm and having either of the following characteristics–

• (a) An output energy exceeding 1.5 J per pulse and a pulsed peak power exceeding 30 W

• or

• (b) An average or CW output power exceeding 30 W

• (C) An output wavelength exceeding 800 nm but not exceeding 1,400 nm and having either of the following characteristics–

• (a) An output energy exceeding 0.25 J per pulse and a pulsed peak power exceeding 10 W

• or

• (b) An average or CW output power exceeding 10 W

• (D) An output wavelength exceeding 1,400 nm and an average or CW output power exceeding 1 W

• (b) Semiconductor lasers or laser diodes, the following–

• (1) Individual semiconductor lasers having either of the following characteristics–

• (A) An average output power exceeding 100 mW

• or

• (B) A wavelength exceeding 1,000 nm

• (2) Arrays of semiconductor lasers incorporating individual semiconductor lasers, having any of the following characteristics–

• (A) An output energy exceeding 500 microjoules per pulse and a pulsed peak power exceeding 10 W

• (B) An average or CW output power exceeding 10 W

• or

• (C) A wavelength exceeding 1,000 nm

• (c) Solid state lasers (including titanium-sapphire and alexandrite lasers), the following–

• (1) Tunable lasers having any of the following characteristics–

• (A) an output wavelength less than 600 nm and having either of the following characteristics–

• (a) An output energy exceeding 50 mJ per pulse and a pulsed peak power exceeding 1 W

• or

• (b) An average or CW output power exceeding 1 W

• (B) An output wavelength of 600 nm or more but not exceeding 1,400 nm and having either of the following characteristics–

• (a) An output energy exceeding 0.5 J per pulse and a pulsed peak power exceeding 20 W

• or

• (b) An average or CW output power exceeding 20 W

• (C) An output wavelength exceeding 1,400 nm and having either of the following characteristics–

• (a) An output energy exceeding 50 mJ per pulse and a pulsed peak power exceeding 1 W

• or

• (b) An average or CW output power exceeding 1 W

• (2) Non-tunable lasers, including rare earth doped solid-state lasers, the following–

• (A) Ruby lasers having an output energy exceeding 20 J per pulse

• (B) Neodymium glass lasers having an output energy exceeding 20 J per pulse

• (C) Neodymium doped (other than glass) lasers having an output wavelength between 1,000 nm and 1,100 nm and any of the following characteristics–

• (a) Pulse-excited and Q-switched, having either of the following characteristics–

• (1) A single transverse mode output having any of the following characteristics–

• (A) A peak power exceeding 100 MW

• (B) An average output power exceeding 20 W

• or

• (C) A pulsed energy exceeding 2 J

• (2) A multiple-transverse mode output having any of the following characteristics–

• (A) A peak power exceeding 200MW

• (B) An average output power exceeding 50W

• or

• (C) A pulsed energy exceeding 2J

• (b) Pulse-excited (including those which run in a continuously excited mode with pulse excitation superimposed), and non-Q-switched, having either of the following characteristics–

• (1) A single transverse mode output having either of the following characteristics–

• (A) A peak power exceeding 100kW

• or

• (B) An average output power exceeding 50W

• (2) A multiple transverse mode output having either of the following characteristics–

• (A) A peak power exceeding 1MW

• or

• (B) An average power exceeding 500W

• (c) Continuously excited and having either of the following characteristics–

• (1) A single transverse mode output having either of the following characteristics–

• (A) A peak power exceeding 100kW

• or

• (B) An average or CW output power exceeding 50W

• (2) A multiple-transverse mode output having either of the following characteristics–

• (A) A peak power exceeding 1MW

• or

• (B) An average or CW output power exceeding 500W

• (D) Other non-tunable lasers, having any of the following characteristics–

• (a) A wavelength less than 150nm and having either of the following characteristics–

• (1) An output energy exceeding 50mJ per pulse and a pulsed peak power exceeding 1W

• or

• (2) An average or CW output power exceeding 1W

• (b) A wavelength of 150nm or more but not exceeding 800nm and having either of the following characteristics–

• (1) An output energy exceeding 1.5 joules per pulse and a pulsed peak power exceeding 30W

• or

• (2) An average or CW output power exceeding 30W

• (c) A wavelength exceeding 800nm but not exceeding 1,400nm and having any of the following characteristics–

• (1) Q-switched lasers with any of the following characteristics–

• (A) An output energy exceeding 0.5J per pulse and a pulsed peak power exceeding 50W

• (B) An average output power exceeding 10W for single-mode lasers

• or

• (C) An average output power exceeding 30W for multimode lasers

• (2) Non-Q-switched lasers with either of the following characteristics–

• (A) An output energy exceeding 2J per pulse and a pulsed peak power exceeding 50W

• or

• (B) An average or CW output power exceeding 50W

• (d) A wavelength exceeding 1,400nm and having either of the following characteristics–

• (1) An output energy exceeding 100mJ per pulse and a pulsed peak power exceeding 1W

• or

• (2) An average or CW output power exceeding 1W

• (d) Dye and other liquid lasers, having any of the following characteristics–

• (1) A wavelength less than 150nm and having either of the following characteristics–

• (A) An output energy exceeding 50mJ per pulse and a pulsed peak power exceeding 1W

• or

• (B) An average or CW output power exceeding 1W

• (2) A wavelength of 150nm or more but not exceeding 800nm, and having any of the following characteristics–

• (A) An output energy exceeding 1.5J per pulse and a pulsed peak power exceeding 20W

• (B) An average or CW output power exceeding 20W

• or

• (C) A pulsed single longitudinal mode oscillator with an average output power exceeding 1W and a repetition rate exceeding 1kHz if the pulse duration is less than 100ns

• (3) A wavelength exceeding 800nm but not exceeding 1,300nm, and having either of the following characteristics–

• (A) An output energy exceeding 0.5J per pulse and a pulsed peak power exceeding 10W

• or

• (B) An average or CW output power exceeding 10W

• (4) A wavelength exceeding 1,300nm, and having either of the following characteristics–

• (A) An output energy exceeding 100mJ per pulse and a pulsed peak power exceeding 1W

• or

• (B) An average or CW output power exceeding 1W

• (e) Free electron lasers

excepted from this entry are helium-neon and helium-cadmium lasers.

In this entry–

• “tunable” refers to the ability of a laser to produce an output at any wavelength within its tuning range. A line-selectable laser which can operate only on discrete wavelengths is not tunable;

• “specially designed components” includes active and passive components in semi-fabricated forms as well as in fabricated forms;

• Note: Lasers contained in equipment described in other entries in this Schedule are dealt with in the appropriate entry.

PL7021

Laser-radar (lidar) equipment, and specially designed components therefor

except–

when specially designed for surveying or meteorological observation.

IL1526

Optical fibres, optical fibre cables and other cables and components and accessories, the following–

• (a) Unarmoured or single-armoured ocean cable having an attenuation of 1.62dB/km (3.0 dB per nautical mile) or less, measured at a frequency of 600kHz

• (b) Optical-fibre communication cable or optical fibres therefor, having any of the following characteristics–

• (1) the optical fibre is designed for single mode light propagation

• (2) the optical fibre–

• (i) is designed for multimode light propagation; and

• (ii) has an attenuation of less than 1.0 dB/km at a wavelength of 1300nm

• (3) the optical fibre is capable of withstanding a proof test tensile strength of 1.1 × 10⁹ N/m² or more

• (4) the optical fibre is specially designed for underwater use or

• (5) the optical fibre is specially designed to be insensitive to nuclearradiation

• except pigtails (that is to say, pieces of optical fibre or optical fibre cable no longer than 50m, whether attached to components or instruments or not) which are not nuclear radiation hardened.

• (c) Optical fibres for sensing purposes, having any of the following characteristics–

• (1) specially fabricated either compositionally or structurally, or modified by coating to be acoustically, thermally, inertially, electromagnetically or nuclear radiation sensitive

• (2) modified structurally or by coating to have either–

• (i) a beat length of more than 50cm (low birefringence), except if designed for operation at wavelengths of less than 650nm; or

• (ii) a beat length of less than 5cm (high birefringence)

• (d) Secure communication cable, being either coaxial or multiconductor communication cable protected by mechanical or electrical means from physical damage or intrusion in such a manner that communications security is maintained between terminals without the necessity for encryption

• except cable which is armoured only by either a tough outer sheath or by an electromagnetic screen

• (e) Components and accessories specially designed for the optical fibres or cable specified in this entry including fibre-optic bulkhead or hull penetration connectors impervious to leakage at any depth for use in ships or vessels, and multiport fibre-optic couplers (including T, star, bidirectional and wavelength division multiplexing and demultiplexing couplers)

• except connectors for use with optical fibres or cable with a repeatable coupling loss of 0.5dB or more.

In this entry–

• “beat length” means the distance, over which two orthogonally polarised signals, initially in phase, must pass in order to achieve 2Pi radian(s) phase difference;

• “proof test” consists of on-line or off-line production screen testing that dynamically applies a prescribed tensile stress over a 0.5 to 3m length of fibre at a running rate of 2 to 5m/s while passing between capstans approximately 15cm in diameter. The ambient temperature is a nominal 20°C and relative humidity 40%.

IL1527

Crytographic equipment designed to ensure secrecy of communications (such as telegraphy, telephony, facsimile, video, and data communications) or of stored information; and specially designed components therefor, and software controlling or computers performing the functions of such cryptographic equipment

except simple cryptographic devices or equipment ensuring only the privacy of communications, the following–

• (a) equipment for voice transmission making use of fixed frequency inversions or fixed band scrabbling techniques in which the transposition changes occur not more frequently than once every 10seconds;

• (b) standard civil facsimile and video equipment designed to ensure the privacy of communications by an analogue transmission using non-standard practices for intended receivers only (video system equipment effecting the transposition of analogue data);

• (c) video systems for pay television and similar restricted audience television, including industrial and commercial television equipment using other than standard commercial sweep systems

Note 1. This entry includes video systems which, for secrecy purposes, use digital techniques (conversion of an analogue, ievideo or facsimile signal into a digital signal).

Note 2. Digital computers and digital differential analysers (incremental computers) designed or modified for, or combined with, any cypher machines, cryptographic equipment devices or techniques including software, microprogramme control (firmware).

IL1529

Electronic equipment for testing, or measuring for microprocessor or microcomputer development, the following: and specially designed software therefor–

• (a) Any testing or measuring equipment–

• (1) not specified in any other entry in this Schedule

• (2) designed for use at frequencies exceeding 18GHz

• except the following equipment having a maximum specified operating frequency of 26.5GHz or less–

• (1) power meters;

• (2) broadband noise sources;

• (3) noise figure meters;

• (b) Logic analysers having any of the following characteristics: and specially designed accessories and specially designed components therefor–

• (1) more than a total 64 channels

• (2) a synchronous (state) channel sampling rate of more than 50MHz

• (3) an asynchronous (timing) channel sampling rate of more than 200MHz

• (4) probe interfaces and inverse assemblers, except those designed for use with a microprocessor or microcomputer microcircuit family which contains at least one microprocessor or microcomputer microcircuit that is not specified in entry IL1564

• (c) Caesium frequency standards having both of the following characteristics

• (1) designed as reference standards for laboratory use;

• (2) either of the following:

• (A) a long-term drift (ageing) over 24 hours or more of 1 part or less in 10¹⁰; or

• (B) a short-term drift (instability) over a period from 1 to 100seconds of 1 part or less in 10

• (d) Equipment containing Caesium frequency standards, having any of the following characteristics–

• (1) designed for mobile use and having a long-term drift (ageing) over24 hours or more of 1 part or less in 10⁹

• (2) designed for fixed ground use and having a long-term drift (ageing) over 24 hours or more of 5 parts or less in 10¹⁰

• (3) a short-term drift (instability) over a period from 1 to 100seconds of 1 part or less than 10¹²

• (e) Comb frequency generators designed for use at frequencies exceeding 12.5GHz

• (f) Specially calibrated microwave instrumentation receivers capable of measuring amplitude and phase simultaneously and designed for use at frequencies exceeding 1GHz

• (g) Digital counters, the following–

• (1) those capable of performing frequency measurements above 20GHz

• (2) those capable of performing either the frequency or the change in phase or frequency within a pulse (pulse frequency profiling) using either internally or externally gated sampling intervals of 100ns or less

• (3) those capable of measuring burst frequencies exceeding 250MHz for a burst duration of less than 2ms

• (i) Digital voltage measuring equipment capable of more than 1,000 readings per second with a resolution of more than 4½ digits, not including changes in range or polarity

• except–

• (A) visual quantisation apparatus capable of providing an average value, displayed or not, of the results of the measurement;

• (B) multichannel analysers of all types used in nuclear experimentation;

• (C) industrial telemeasuring devices in which a pre-set storage value is used as a basis for measuring.

• (j) General purpose data communication protocol analysers, testers and simulators for X.25 level 3 and above as well as Integrated Service Digital Network protocols (CCITT-ISO)

• (k) Microprocessor or microcomputer development instruments or systems (including specially designed accessories and personality modules) which are capable of developing software or programming microcircuits specified in entry IL1564 in Group 3F, the following–

• (A) Cross-hosted assemblers and cross-hosted compilers

• (B) Adapter interfaces for prototypes and/or emulation probes

• (C) Debuggers

• except–

• 1. Personality modules which contain only one of the accessories specified in (A) to (C) above;

• 2. Microprocessor or microcomputer development instruments or systems having all the following characteristics–

• (a) they can be used to develop software for, or to programme a family of microprocessor or microcomputer microcircuits not designed or produced in a country listed in Schedule 2;

• (b) they can be used only for microprocessor or microcomputer microcircuits having both–

• (1) an operand (data) word length of no more than 16 bit; and

• (2) an arithmetic logic unit (ALU) not wider than 32 bit;

• (c) the family contains at least one microprocessor or microcomputer microcircuit which is excluded from entry IL1564 in Group 3F.

In this entry–

• “burst frequency” measurement means the capability of counter to start only when the input signal is present and stop counting at the completion of the burst;

• “comb frequency generators” means apparatus which generate a spectrum of harmonics;

• “family” means a group of microprocessor or microcomputer microcircuits which have–

• (a) the same architecture;

• (b) the same basic instruction set; and

• (c) the same basic technology (egonly NMOS or only CMOS);

• “frequency (heterodyne) converters” means equipment which down-converts as unknown frequency by mixing it with an accurately known frequency. This accurately known reference frequency is derived from a crystal, by multiplication of its frequency and passing it through a harmonic generator. By mixing the appropriate harmonic and the unknown frequency, an accurate third frequency results;

• “pulse frequency profiling” means the capability of measuring the changes of frequency (or phase) within a pulse as a function of time; such changes in frequency would be present in a transmitted pulse-compression radar pulse (chirp radar). This profiling may be achieved by internal or external gating. Pulse frequency profiling is not intended to include frequency modulation tolerance while it is being frequency modulated;

• “transfer oscillators” means oscillators based on the principle of harmonic mixing. The known reference frequency is derived from a local oscillator instead of from a crystal. The unknown frequency is mixed with the local oscillator frequency, the two are phase-locked by tuning the local oscillator and can then be measured by a counter.

IL1531

Frequency synthesisers, and equipment containing such frequency synthesisers, and technology, the following–

• (a) Frequency synthesisers containing frequency standards specified in head (c) in entry IL1529 in Group 3F

• (b) Instrument frequency synthesisers and synthesised signal generators, and specially designed components and accessories therefor, designed for ground use, and producing output frequencies the accuracy of which and the short term and long term stability of which are controlled by, derived from, or disciplined by the input frequency or internal master standard frequency, and having any of the following characteristics–

• (1) a maximum synthesised output frequency of more than 550 MHz

• (2) any of the following noise characteristics–

• (A) a single sideband (SSB) phase noise better than −120 dBc/Hz when measured at a 20 kHz offset from the carrier frequency

• (B) a single sideband (SSB) phase noise better than −106 dBc/Hz when measured at a 100 Hz offset from the carrier frequency

• (C) an integrated phase noise better than −60 dBc/Hz referred to a 30kHz band centred on the carrier, excluding the 1Hz band centred on this carrier

• or

• (D) an integrated AM noise better than −70 dBc/Hz referred to a30 kHz band centred on the carrier, excluding the 1Hz band centred on this carrier

• except–

• synthesised signal generators having the characteristics specified in paragraph (1) or (2)(A) above and a maximum synthesised output frequency of 1,400 MHz or a single sideband phase noise of not less than −136 dBc/Hz when measured at an offset of 20 kHz from a carrier frequency of 100 MHz, provided that the technology supplied is the minimum necessary for the installation, operation and maintenance of the generator;

• (3) electrically programmable in frequency, with a frequency switching time of less than 5ms

• (4) electrically programmable in phase, with a switching time from one selected phase value to another of less than 10ms, except where incorporating pre-emphasis networks from frequency modulation

• (5) a level of spurious components in the output, measured relatively to the selected output frequency, better than–

• (A) −60 dB harmonic

• or

• (B) −92dB non-harmonic

• (6) more than 3 different selected synthesised output frequencies available simultaneously from one or more outputs

• (7) facilities for pulse modulation of the output frequency

• (c) Airborne communication equipment using frequency synthesisers, the following: and specially designed components and accessories therefor–

• (1) equipment designed to receive or transmit frequencies of more than156 MHz

• (2) equipment which incorporates facilities for the rapid selection of more than 200 channels per item of equipment

except equipment which operates in the frequency range of 108 to 137 MHz, incorporates facilities for the rapid selection of 760 channels or fewer at not less than 25 kHz channel spacing and has been in normal civil use for at least one year;

• (3) equipment with a frequency switching time of less than 10 ms

• (4) frequency synthesisers designed for the airborne communication equipment specified above (whether supplied therewith or separately), exceeding any of the parameters referred to in head (b) above

• (d) Radio transmitters using frequency synthesis and incorporating transmitter drive units, exciters and master oscillators, the following: and specially designed components and accessories therefor–

• (1) equipment having an output frequency of more than 550 MHz

• except:

• (A) television broadcasting transmitters having all of the following characteristics–

• (a) an output frequency not exceeding 960 MHz;

• (b) a frequency resolution of not better than 1 kHz; and

• (c) there is incorporated in or driving the transmitter a manually-operated frequency synthesiser which has an output frequency not exceeding 120MHz;

• (B) ground communication equipment designed for civil use in the land mobile or marine services (for example cellular radio communications systems, amateur radio or portable radiophone) and having all the following characteristics–

• (a) an operating frequency of not more than 1.3 GHz;

• (b) a power output of 50 W or less for mobile units, or 300 W or less for fixed units;

• (c) in the case of cellular radio base stations, use of analogue radio transmission only;

• (d) a transmitter frequency switching time of 2 ms or more;

• (e) a frequency resolution of not better than 2.5 kHz;

• (f) none of the features specified in head (c) of entry IL1517 in Group 3F;

• (2) equipment having more than three different selected synthesised output frequencies available simultaneously from one or more outputs

• (3) equipment with facilities for pulse modulation of the output frequency of the transmitter or of the incorporated frequency synthesiser

• (4) frequency synthesisers designed for radio transmitters incorporating transmitter drive units, exciters and master oscillators (whether supplied therewith or separately) exceeding any of the parameters referred to in head (b) above

• except–

• those specially designed for radio telephones described in the exception in paragraph (1)(B) above;

• (e) Technology for equipment referred to in paragraph (1)(B) of the exception to head (d) above, where such technology is for the development or production of digital equipment or of specially designed ODMA software for use in digital civil land mobile networks

There shall be excluded from this entry equipment in which the output frequency is produced by the addition or subtraction of two or more crystal oscillator frequencies, whether or not followed by multiplication of the result.

In this entry–

• “frequency switching time” means the maximum time (ie delay), when switched from one selected output frequency to another selected output frequency, to reach:

• (a) a frequency within 100 Hz of the final frequency; or

• (b) an output level within 1.0 dB of the final output level;

• “frequency synthesiser” means any kind of frequency source or signal generator, regardless of actual technique used, providing a multiplicity of simultaneous or alternative output frequencies, from one or more outputs, controlled by, derived from or disciplined by a lesser number of standard (or master) frequencies.

PL7013

Transceivers having an output frequency of up to 32 MHz and using frequency synthesis with a frequency resolution of 10 Hz or better

In this entry “transceiver” means equipment which comprises a radio transmitter and a radio receiver and which uses part or all of the same circuitry in both transmit and receive modes.

IL1533

Signal analysers, including spectrum analysers and network analysers, the following: and specialy designed components, accessories and specially designed ODMA software therefor–

• (a) Signal analysers having any of the following characteristics–

• (1) capable of analysing frequencies exceeding 18 GHz

• (2) capable of analysing frequencies exceeding 2.3 GHz with a frequency span of more than 2.3 Ghz

• (3) using time compression of the input signal

• (b) Dynamic signal analysers, except those having a real-time bandwidth less than 5.12 kHz

• (c) Swept frequency network analysers or sweep generators, the following–

• (1) Those for the automatic measurement of complex equivalent circuit parameters over a range of frequencies and having a maximum operating frequency exceeding 20 GHz;

• (2) Those which cannot be controlled remotely for the measurement of complex equivalent circuit parameters over a range of frequencies and having a maximum operating frequency exceeding 40 GHz

• except–

• equipment for continuous wave, point-to-point measurement.

• (d) Scalar network analysers having a maximum operating frequency exceeding20 GHz

There shall be excluded from this entry–

• (a) optical spectrum analysers such as–

• (1) prism or grating monochrometers;

• (2) optical interferometers;

• (3) optical spectrometers;

• (b) equipment using only constant percentage bandwidth filters (also known as octave or fractional octave filters);

• (c) medical equipment containing, as an integral part, signal analyser.

In this entry–

• “signal analysers” means apparatus capable of measuring and displaying basic properties of the single-frequency components of multi-frequency signals;

• “dynamic signal analysers” means signal analysers which use digital sampling and transformation techniques to form a Fourier spectrum display of the given waveform including amplitude and phase information;

• “real-time bandwidth” for dynamic signal analysers is the widest frequency range which the analyser can output to display or mass storage without causing any discontinuity in the analysis of the input data. For analysers with more than one channel, the channel configuration yielding the widest real-time bandwidth shall be used to make the calculation;

• “frequency span” means the maximum range of the frequency segment displayed.

IL1534

Flatbed microdensitometers (except cathode-ray types), having any of the following characteristics: and specially designed components therefor–

• (a) A recording or scanning rate exceeding 5,000 data points per second

• (b) A figure of merit better (less) than 0.1, defined as the product of the density resolution (expressed in density units) and the spatial resolution (expressed in micrometres)

• except equipment with a spatial resolution not better (less) than 2 micrometres and a density resolution not better (less) than 0.01 density unit.

• (c) An optical density range greater than 0 to 4

Note: Density resolution expressed in density units is measured over the optical density range of the instrument.

IL1537

Microwave (including millimetric wave) equipment, capable of operating at frequencies of over 10.5 GHz, the following:

• (a) Rigid and flexible waveguides designed for use at frequencies in excess of 26.5 GHz

• (b) Waveguides having a bandwidth ratio above 1.7:1

• (c) Directional couplers having a bandwidth ratio above 1.7:1 and directivity over the band of 20 dB or more

• (d) Phased array antennae and sub-assemblies, designed to permit electronic control of beam shaping and pointing, and specially designed components therefor, including duplexers, phase shifters and associated high-speed diode switches

• except–

• duplexers and phase shifters specially designed for use in civil television systems and in other civil radar or communication systems not specified elsewhere in this Schedule;

• (e) Other antennae specially designed for operation at frequencies above 30 GHz, having a diameter of less than 1 m, and specially designed components therefor

• (f) Microwave assemblies and sub-assemblies (including active circuit elements), capable of being used at frequencies above 23.6 GHz and havingcircuits fabricated by the same processes as are used in integrated circuit technology

• (g) Microwave assemblies and sub-assemblies, which contain band-pass or band-stop filters and are capable of operating at 23.6 GHz or more

• (h) Amplifiers having an instantaneous bandwidth of more than half an octave (the highest operating frequency being more than 1.5 times the lowest operating frequency)

• except–

• parametric or paramagnetic amplifiers which–

• (a) are specially designed for medical applications;

• (b) are specially designed for use in simple educational devices (those designed for use in teaching basic principles and demonstrating the operation of those principles in educational institutions), and operate at industrial, scientific or medical (ISM) frequencies; or

• (c) have an output power of not more than 10 W and are specially designed for–

• (1) systems for the detection of industrial or civilian intrusion and related alarm systems;

• (2) traffic or industrial movement control and counting systems;

• (3) systems for the detection of environmental pollution of air or water; or

• (4) simple educational devices (those designed for use in teaching basic principles and demonstrating the operation of those principles in educational institutions).

PL7022

Solid state switches having all the following characteristics

• (a) an anode peak voltage in the range 2,000 to 6,000 volts; and

• (b) an anode peak current rating of 500 amperes or more; and

• (c) a turn on time of 1 microsecond or less.

PL7023

Cold cathode tubes and switches, the following–

• (a) Triggered spark gaps rated for a peak current of 500 amperes

• except–

• cold cathode relay tubes or decade counter tubes.

• (b) Cold cathode tubes, gas krytron tubes, vacuum krytron tubes, tubes which operate in a manner similar to a spark gap and contain three or more electrodes whether gas-filled or not, and having both the following characteristics

• (1) Rated for an anode peak voltage of 2,500 volts or more;

• (2) Rated for peak currents of 100 amperes or more;

• except–

• ignitrons,

In this entry–

• “triggered spark gap” means a tube with a structure consisting of two opposed anodes with shapes resembling flattened hemispheres, and with one or more triggering probes placed approximately in the centre of one anode. The strucure is sealed and contains a mixture of gases, principally nitrogen, under less than atmospheric pressure.

IL1548

Photosensitive components, including linear and focal plane arrays, the following: and dice and wafers therefor–

• (a) Photosensitive components, including photodiodes, phototransistors, photothyristors, photoconductive cells and similar photosensitive components, having either of the following characteristics–

• (1) having a peak sensitivity at a wavelength longer than 1,200 nanometres or shorter than 190 nanometres

• or

• (2) having a peak sensitivity at a wavelength shorter than 300 nanometres and having an efficiency of less than 0.1 per cent relative to peak response at wavelengths longer than 400 nanometres

• except vacuum photodiodes specially designed for use in spectrophotometry having a peak response at a wavelength shorter than 300 nanometres.

• (b) Semiconductor photodiodes and phototransistors with a response time constant of 95 ns or less measured at the operating temperature for which the time constant reaches a minimum

• except semiconductor photodiodes which are not space qualified with a response time constant of 0.5 ns or more and with a peak sensitivity at a wavelength neither longer than 1,050 nm nor shorter than 300 nm.

• (c) Photosensitive components specially designed or rated as electromagnetic, including laser and ionized-particle radiation resistant

• (d) Linear and focal plane arrays (hybrid or monolithic) having the characteristics specified in head (a)(1) or (2) or (b) above, and specially designed components therefor

There shall be excluded from this entry–

• (a) germanium photo devices with a peak sensitivity at a wavelength shorter than 1,750 nanometres;

• (b) infrared singleor multi-element (not to exceed 16 elements) encapsulated photoconductive cells or pyroelectric detectors using any of the following–

• (1) Lead sulphide;

• (2) Triglycine sulphate and variants;

• (3) Lead-lanthanum-zirconium titanate and variants;

• (4) Lithium tantalate;

• (5) Polyvinylidene fluoride and variants;

• (6) Strontium barium niobate and variants; or

• (7) Lead selenide;

• (c) single-element encapsulated mercury-cadmium-telluride (HgCdTe) uncooled (295 K ambient temperature operation) photo-electromagnetic (pem) or photoconductive (pc) mode photodetectors with a peak sensitivity at a wavelength shorter than 11,000 nanometres.

In this entry–

the “time constant” is the time taken from the application of a light stimulus for the current increment to reach a value of 1–1/e times the final value (ie 63 per cent of the final value);

• “space qualified” means products which are stated by the manufacturer as designed and tested to meet the special electrical, mechanical or environmental requirements for use in rockets, satellites or high-altitudes flight systems operating at altitudes of 100 km or more.

IL1549

Photomultiplier tubes having any of the following characteristics–

• (a) Solar blind types for which the long wavelength cutoff is below 350 nm, where the long wavelength cutoff is defined as 10 per cent of the maximum sensitivity

• except–

• Photomultiplier tubes specially designed for use in spectrophotometry having a peak sensitivity at a wavelength shorter than 300 nm.

• (b) Having an anode pulse rise time of less than 1 ns

• (c) Containing microchannel-plate electron multipliers

IL1553

Flash discharge type X-ray systems, including tubes, having all of the following characteristics–

• (a) Peak power greater than 500 MW;

• (b) Output voltage greater than 500 kV;

• (c) Pulse width less than 0.2 microsecond.

PL7042

Radiographic equipment, the following: and specially designed software therefor–

• (a) equipment capable of delivering electromagnetic radiation produced by bremsstrahlung from accelerated electrons of 2MeV or greater

• (b) equipment using radioactive sources of 1MeV or greater, except those specially designed for medical purposes

IL1555

Electron tubes, the following: and specially designed components therefor–

• (a) Electron tubes for image conversion or intensification (including those designed for streak or framing cameras), incorporating either–

• (1) microchannel-plate electron multipliers

• (2) semi-transparent photocathodes incorporating epitaxially grown layers of compound semiconductors such as gallium arsenide

• (b) Electron tubes for television or cameras, having any of the following characteristics–

• (1) incorporating microchannel-plate electron multipliers

• (2) coupled with electron tubes specified in head (a) above

• (3) ruggedised and having a maximum length-to-bulb diameter ratio of 5:1 or less

except–

commercial standard X-ray amplifier tubes.

IL1556

Optical elements and elements for optical tubes, the following–

• (a) Non-flexible fused fibre-optic plates or bundles, having all of the following characteristics–

• (1) a fibre pitch (centre-to-centre spacing) of less than 10 micrometres;

• (2) a light-absorbing medium surrounding each fibre, or interstitially placed between fibres; and

• (3) a diameter greater than 13 mm.

• (b) Microchannel-plates for electron image amplification, having both of the following characteristics–

• (1) 15,000 or more hollow tubes per plate; and

• (2) hole pitch (centre-to-centre spacing) of less than 25 micrometres.

• (c) Semi-transparent photocathodes incorporating epitaxially grown layers of compound semiconductors, such as gallium arsenide

• (d) Diffractive type optical elements specially designed for display screens, with any of the following characteristics–

• (1) a transmission of more than 90 per cent outside the reflection band and a reflection or more than 75 per cent inside the reflection band, which has less than 15 nanometres bandwidth and is matched to the frequency of the display light source

• (2) a rear projection screen brightness gain of more than 10 times the gain of a Lambertian scatterer with an equivalent area, and less than 10 per cent variation in brightness across the exit aperture

or

• (3) specially designed for use in helmet-mounted displays

IL1558

Electronic vacuum tubes (valves) and cathodes, the following: and other components specially designed for those tubes–

• (a) Tubes in which space charge control is utilized as the primary functional parameter, including triodes and tetrodes, the following–

• (1) tubes rated for continuous wave operation having either of the following characteristics–

• (A) above 4 GHz at maximum rated anode dissipation

• (B) within the frequency range 0.3 to 4 GHz and for which, under any condition of cooling, the product of the maximum rated anode dissipation (expressed in kW) and the square of the maximum frequency (expressed in GHz) at the maximum rated anode dissipation is greater than 10, except tubes specially designed for television transmitters operating in the frequency range of 0.47 to 0.96 GHz and rated for operation without a grid current, for which the product of the rated anode dissipation (expressed in kW) and the square of the maximum frequency (expressed in GHz) may reach 20

• (2) tubes, rated only for pulse operation, having either of the following characteristics–

• (A) above 1 GHz, with maximum peak pulse output power greater than 45 kW

• (B) between 0.3 and 1 GHz and for which, under any condition of cooling, the product of the peak pulse output power (expressed in kW) and the square of the maximum frequency (expressed in GHz) exceeds 45

• (3) tubes specially designed for use as pulse modulators for radar or similar applications, having a peak anode voltage rating of 100 kV or more, or rated for a peak pulse power of 20 MW or more

• except–

• tubes specially designed for civil telecasting according to CCIR or OIR standards and specially designed components therefor. The above exception does not apply to technological documents the information in which includes information relating to goods excluded by the above exception.

• (b) Tubes which utilise interaction between a beam of electrons and microwave elements and in which the electrons travel in a direction perpendicular to the applied magnetic field, including magnetrons, cross-field amplifier tubes and cross-field oscillator tubes

• except–

• (i) fixed frequency and tunable pulsed magnetrons and crossed-field amplifier tubes which are in normal civil use, the following–

• (1) magnetrons designed to operate at frequencies below 3 GHz with a maximum rated peak output power of 5 MW or less, or between 3 to 12 GHz with the product of the maximum rated peak output power (expressed in kW) and the frequency (expressed in GHz) less than 4,200 and a frequency tuning time of more than 100 ms;

• (2) crossed-field amplifier tubes designed to operate at frequencies below 4 GHz with a maximum rated average output power of 1.2 kW or less, a bandwidth of 200 MHz or less and a gain of less than 15 dB;

• (ii) fixed frequency continuous wave magnetrons designed for medical use or for industrial heating or cooking purposes operating at a frequency of 2.375 GHz + 0.05 GHz or 2.45 GHz + 0.05 GHz with a maximum rated output power not exceeding 6 kW or, at a frequency lower than 1 GHz, with a maximum rated output power not exceeding 35 kW;

• (i) continuous wave tubes having all of the following characteristics–

• (1) designed for use in civil ground communication;

• (2) instantaneous bandwidth tubes with any of the following sets of characteristics–

• (a) tubes with–

• (1) an instantaneous bandwidth of half an octave or less, (ie the highest operating frequency is not higher than 1.5 times the lowest operating frequency);

• (2) the product of the rated output power (expressed in kW) and the maximum operating frequency (expressed in GHz) does not exceed 0.3;

• (b) tubes which–

• (1) have an instantaneous bandwidth of 10% or less (ie the highest operating frequency does not exceed 1.1 times the lowest operating frequency);

• (2) the product of the rated output power (expressed in kW) and the maximum operating frequency (expressed in GHz) does not exceed 5;

• (3) operate in standard international telecommunications bands;

• (c) tubes which–

• (1) have an instantaneous bandwidth of 3% or less (ie the highest operating frequency does not exceed 1.03 times the lowest operating frequency) (2) the product of the rated output power (expressed in kW) and the maximum operating frequency (expressed in GHz) does not exceed 25; and

• (3) operate in standard international telecommunications bands;

• (3) an operating frequency no higher than 20 GHz;

• (4) no multiple grid including shadow grid electron guns;

• (5) collectors with no more than two depressed stages;

• (ii) pulsed tubes, having all of the following characteristics–

• (1) for civil applications;

• (2) an instantaneous bandwidth of half an octave or less, (ie the highest operating frequency is not higher than 1.5 times the lowest operating frequency);

• (3) collectors with no more than two depressed stages;

• (4) having either of the following sets of characteristics–

• (a)

• (1) peak saturated output power not exceeding 1 kW,

• (2) an average output power not exceeding 40 W, and

• (3) operating frequency not exceeding 10 GHz; or

• (b)

• (1) peak saturated output not exceeding 100 W,

• (2) an average output power not exceeding 20 W, and

• (3) operating frequency between 10 and 20 GHz;

• (iii) fixed frequency pulsed tubes, having all of the following characteristics–

• (A) for civil applications;

• (B) operating frequencies below 3.5 GHz;

• (C) having a peak output power of 1.6 MW or less; and

• (D) having an operating bandwidth of less than 1%

• (iv) tubes, having all of the following characteristics–

• (A) used as fixed frequency or voltage tunable oscillator tubes;

• (B) designed to operate at frequencies below 20 GHz; and

• (C) having a maximum output power of less than 3 W;

• (d) Tubes which utilize interaction between an electron beam and microwave elements or cavities but do not require a magnetic field to control or focus the electron beam, except low power reflex oscillator klystrons designed to operate at frequencies below 20 GHz and at a maximum output power of less than 3 W

• (e) Tubes which utilize interaction between a beam of electrons and microwave elements or cavities in which the electrons drift in a direction parallel to the applied magnetic field but also require for their operation a large component of velocity transverse to the direction of the applied magnetic field, including gyrotrons, ubitrons and peniotrons except gyrotron oscillators

• (f) Tubes designed to withstand on any axis an acceleration of short duration (shock) greater than 1,000 g

• (g) Tubes designed for operation in ambient temperatures exceeding 437 K

• (h) Tubes of a type specified in head (c), (d) or (e) above, which are designed to operate with no filament or cathode heating element as indicated by the absence of heating supply connections

• (i) Tubes which utilize a modulated beam of electrons striking one or more semiconductor diodes to provide power gain

• (j) Cathodes for electronic vacuum tubes, the following–

• (1) Specially designed for tubes specified in heads (a) to (i)

• (2) Impregnated cathodes capable of producing a current density exceeding 0.5A/cm² at rated operating conditions

In this entry–

• “frequency tuning time” is the time required to change the operating frequency from a starting frequency, through the maximum frequency, through the minimum frequency, and return to the starting frequency ie one complete tuning cycle. Frequency tuning time: T=1/(2f⁰ ) f⁰ : dither rate.

IL1560

High energy storage capacitors, the following–

• (a) Capacitors with a repetition rate of less than 10Hz having all of the following characteristics–

• (1) A voltage rating equal to or more than 5 kV;

• (2) An energy density equal to or more than 250J/kg; and

• (3) A total energy equal to or more than 25kJ.

• (b) Capacitors with a repetition rate of 10Hz or more having all of the following characteristics–

• (1) A voltage rating equal to or more than 5kV;

• (2) An energy density equal to or more than 50J/kg;

• (3) A total energy equal to or more than 100J; and

• (4) A charge/discharge cycle life equal to or more than 10,000.

There shall be excluded from this entry–

electrolytic or tantalum capacitors.

IL1561

Materials specially designed for use as absorbers of electromagnetic waves having frequencies exceeding 2 × 10⁸ Hz and less than 3 × 10¹²Hz

except the following–

• (b) Absorbers whose incident surface is non-planar in shape, and which have no magnetic loss;

• (c) Planar absorbers having all of the following characteristics–

• (1) Made of the following materials–

• (A) Plastic foam materials (flexible or non-flexible) with carbon-loading, or organic materials, including binders, providing more than5 per cent echo compared with metal over a bandwidth exceeding ±15 per cent on the centre frequency of the incident energy and not capable of withstanding temperatures exceeding 450K (177°C); or

• (B) Ceramic materials providing more than 20 per cent echo compared with metal over a bandwidth exceeding ±15 per cent of the centre frequency of the incident energy, and not capable of withstanding temperatures exceeding 800K (527°C);

• (2) Their tensile strength is less than 7 × 10⁶ N/m² ; and

• (3) Their compressive strength is less than 14 × 10⁶ N/m² . (Absorption test samples for (c)(1)(A) or (B) above should be a square at least 5 wavelengths (of centre frequency) on a side and positioned in the far field of the radiating element.)

PL7043

Coatings, including paints, for reduced observability, specially designed for reduced or tailored reflectivity or emissivity in the infra red or ultra violet regions of the electromagnetic spectrum, and specially designed software therefor

IL1564

Integrated circuits, including packages therefor, assemblies, modules and substrates, the following–

• (a) Integrated circuits, the following: and modules and unfinished wafers with a defined pattern in which the function has been determined, which have performances and functions equivalent to integrated circuits specified in this head–

• (1) Designed or rated as radiation hardened

• (2) Rated for operation at an ambient temperature below 219K (−54°C) or above 397K ( + 124°C)

• except–

• audio amplifier or voltage regulator integrated circuits, or integrated circuits for medical electronic prostheses or car and train engine electronics.

• (3) Silicon-based microprocessor microcircuits, microcomputer microcircuits and microcontroller microcircuits, including Digital Signal Processors (DSP) and Floating Processor Units (FPU), having any of the following characteristics–

• (A) An external data bus width of more than 16 bit with an arithmetic logic unit with an access width or more than 32 bit

• (B) A maximum clock frequency of more than 20MHz;

• or

• (C) Random access storage (RAM) of more than 512 Bytes within the package

• except–

• silicon-based microcomputer microcircuits or microcontroller microcircuits having an operand (data) word length of 8 bit or less.

• (4) Silicon-based peripheral integrated circuits specially designed to support integrated circuits specified in (3) to head (a) above

• (5) Silicon-based storage integrated circuits, the following–

• (A) Fusible link or avalanche breakdown programmable read only memories (PROMS) having a storage capacity of more than 128 kbits per package

• (B) Electrically erasable programmable read only memories (EEPROMs) or electrically alterable read only memories (EAROMs), having a storage capacity of more than 64 kbits per package

• (C) Ultra-violet erasable programmable read only memories (UV-EPROMs) having a storage capacity of more than 256 kbits per package, including unprogrammable one-time programmable read-only memories (OTP ROMs) which use the same technology as UV-EPROMs for their semiconductor chips, but have no optical window for ultra-violet irradiation

• (D) Dynamic random access memories (DRAMs) having a storage capacity exceeding–

• (a) 1 Mbit per package

• or

• (b) 256 kbits per package if they have a maximum access time of less than 80ns

• (E) Static random-access memories (SRAMs) having a storage capacity exceeding either of the following–

• (a) 256 kbits per package

• or

• (b) 64 kbits per package if they have a maximum access time of less than 80ns

• (6) Converter integrated circuits, the following–

• (A) Analogue-to-digital converters having either–

• (a) A resolution of 12 bits with a conversion time of less than 500ns

• or

• (b) A resolution of more than 12 bits with a conversion time of less than 5 microseconds

• except–

• analogue-to-digital converters designed for digital voltmeters which are not specified in entry IL1529 in Group 3F.

• (B) Digital-to-analogue converters having either–

• (a) A resolution of 12 bits with a maximum settling time to rated linearity of less than–

• (1) 500ns for voltage output converters

• or

• (2) 25ns for current output converters

• or

• (b) A resolution of more than 12 bits, with a maximum settling time to rated linearity of less than–

• (1) 3 microseconds for voltage output converters

• or

• (2) 1 microsecond for current output converters

• (7) Optical integrated circuits having any of the following characteristics–

• (A) Containing more than 2,048 elements

• (B) Having a peak sensitivity at a wavelength longer than 1,200nm or shorter than 190nm

• (C) Having a peak sensitivity at a wavelength shorter than 300nm and having an efficiency of less than 0.1 per cent relative to peak response at wavelengths longer than 400nm

• (D) Having a response time constant of 95ns or less measured at the operating temperature for which the time constant reaches a minimum

• or

• (E) Containing semiconductor lasers specified in entry IL1522 inGroup 3F

• except–

• optical integrated circuits which are not space qualified and which have both of the following characteristics–

• (1) A response time constant of 500 picosecond or more; and

• (2) A peak sensitivity at a wavelength neither longer than 1,050nm nor shorter than 300nm;

• (8) Sample-and-hold integrated circuits having an acquisition time of less than 500ns

• (9) Unprogrammed, silicon-based, programmable gate arrays or logic arrays having both of the following characteristics–

• (A) More than 28 terminals; and

• (B) An equivalent gate count of more than 200 per package

• (10) Fuzzy logic or neural network integrated circuits

• (11) Integrated circuits designed for Integrated Services Digital Network (ISDN) functions

• Note:

• For the purposes of this sub-head, “designed” means that the integrated circuit was manufactured for the specific purpose of providing ISDN functions.

• (12) Unfinished wafers

• except–

• those with a defined pattern, in which the function has been determined, and not specified in any paragraph of head (a) to this entry.

• (13) Integrated circuits, other than those described in (1) to (12) above, having any of the following characteristics–

• (A) Based upon any compound semiconductor

• except–

• compound semiconductor integrated circuits which are designed for, and by virtue of circuit design limited to use in any of the following applications–

• (1) Civil audio, radio or TV equipment operating below 1 GHz; or

• (2) Mobile telephone and cordless telephone equipment operating below 1 GHz.

• (B) Mixed-signal integrated circuits (combining analogue and digital functions) which can operate above 1.2 GHz or which have a typical basic gate propagation delay time of less than 1 ns

• (C) Digital (logic) integrated circuits having a typical basic gate propagation delay time of less than 1 ns

• except–

• silicon-based digital (logic) integrated circuits with 28 terminals or less.

• or

• (D) Having more than 128 terminals

• except–

• silicon based integrated circuits having all of the following characteristics–

• (a) They have no user-accessible microprogrammability;

• (b) The design or programme is originated either by the manufacturer alone or in concert with the user of the integrated circuit;

• (c) The design and programme are fixed at the time of manufacture;

• (d) The design, basic functions and performance of the integrated circuit are for civil end-use; and

• (e) They are designed or programmed by the manufacturer for any of the following applications only:

  • (1) Car electronics (eg entertainment, instrumentation, safety, comfort, operations or pollution control);

  • (2) Home electronics (eg audio and video equipment, appliances, safety, education, comfort, remote controlled toys or amusement);

  • (3) Timekeeping applications (eg watches or clocks);

  • (4) Personal communications up to 150 MHz, including amateur radio communication and intercom;

  • (5) Cameras specified in this Schedule including cine cameras but excluding imaging microcircuits;

  • (6) Medical electronic prostheses (eg, cardiac pacemakers, hearing aids); or

  • (7) Civil telephone subscriber sets providing neither ISDN functions nor encryption;

• (f) Integrated circuits specified in sub-head (a)(9) or (a)(13) or microcontroller microcircuits or microcomputer microcircuits specified in sub-head (a)(3), having all the following characteristics: provided such items are not specially designed components for equipment specified elsewhere in this Schedule–

  • (1) They have no user-accessible microprogrammability;

  • (2) They are for civil end-use and substantially restricted to that application;

  • (3) The design and programme are originated either by the manufacturer alone or in concert with the user of the integrated circuit;

  • (4) The manufacturer has established that the design and programme are fixed at the time of manufacture; and

  • (5) The manufacturer has established that the design, basic functions and performance of the integrated circuit are suitable only for an end-use of a civil nature.

• Note:

• Integrated circuits specially designed for mobile (radio) telephone which use frequency synthesisers are specially designed components specified in entry IL1531 in Group 3F.

• (b) Ceramic packages for integrated circuits designed for hermetically sealed pin or pad grid array, leadless carrier or surface-mounted configurations, having either–

• (1) Pin, pad or lead nominal spacings of less than 1.25 mm; or

• (2) More than 68 terminals

• (c) Ceramic substrates, having more than three layers of interconnections not including the ground plane

• (d) Technological documents the information in which relates to the design, development or processing of wafers or chips for any type of integrated circuit specified in this Schedule

Note:

For assemblies, modules, integrated circuits and substrates, which are specially designed for or which have the same functional characteristics as other equipment, refer to the entry that specifies such equipment.

In this entry–

• “assembly” means two or more electronic components connected together to perform a specific function and normally capable of being disassembled;

• “basic gate power dissipation” means the power dissipation value corresponding to the basic gate utilized within a family of monolithic integrated circuits. This may be specified, for a given family, either as the power dissipation per typical gate or as the typical power dissipation per gate;

• “basic gate propagation delay time” means the propagation delay time value corresponding to the basic gate utilized within a family of monolithic integrated circuits. This may be specified, for a given family, either as the propagation delay time per typical gate or as the typical propagation delay time per gate;

• “circuit element” means a single active or passive functional part of an electronic circuit, such as one diode, one transistor, one resistor, one capacitor, etc;

• “discrete component” means a separately packaged circuit element with its own external connections;

• “film type integrated circuit” means an array of circuit elements and metallic interconnections formed by deposition of a film on an insulating substrate;

• “hybrid integrated circuit” means any combination of integrated circuits, circuit elements or discrete components connected together to perform a specific function;

• “manufacturer” means a person who designs an integrated circuit for an application of his choice and does not include a person who programmes an integrated circuit on behalf of a user;

• “microcomputer microcircuit” means a monolithic integrated circuit or multichip integrated circuit containing an arithmetic logic unit (ALU) capable of executing general purpose instructions from an internal storage (or on an internal storage augmented by an external storage) on data contained therein;

• “microprocessor microcircuit” means a monolithic integrated circuit or multichip integrated circuit containing an arithmetic logic unit (ALU) capable of executing a series of general purpose instructions from an external storage;

• “module” means two or more electronic components connected together to perform a specific function and not normally capable of being disassembled;

• “monolithic integrated circuit” means a combination of passive or active circuit elements or both which:

• (a) is formed by means of diffusion processes, implantation processes or deposition processes in or on a single semiconducting piece of material;

• (b) can be considered as indivisibly associated; and

• (c) performs the function of a circuit;

• “multichip integrated circuit” means two or more monolithic integrated circuits bonded to a common substrate;

• “optical integrated circuit” means a monolithic integrated circuit or a hybrid integrated circuit, containing one or more parts designed to function as a photosensor or photoemitter or to perform an optical or electro-optical function;

• “speed” means the shortest time required to fetch two operands from an external storage outside any work register, add them and return the result to the same or another external storage location using that addressing mode which yields the shortest execution time;

• “speed-power dissipation product” means the product of the speed and the typical power dissipation which shall be taken at the clock frequency used in the speed computation. The typical power dissipation must be the lowest of the following:

• (a) the specified typical internal power dissipation;

• (b) one half the maximum internal power dissipation;

• (c) the product of the nominal supply voltage and typical total supply current; or

• (d) one half of the product of the nominal supply voltage and maximum total supply current;

• “substrate” means a sheet of base material with or without an interconnection pattern and on which or within which discrete components, integrated circuits or both can be located;

• “user-accessible microprogrammability” means the facility allowing a user to insert, modify or replace microprogrammes;

• “user-accessible programmability” means the facility allowing a user to insert, modify or replace programmes by means other than:

• (a) a physical change in wiring or interconnections; or

• (b) the setting of function controls including entry of parameters.

PL7039

Analogue-to-digital converter integrated circuits having all of the following characteristics

• (a) a resolution of 8 bits or more;

• (b) rated operation in the temperature range from below −54°C to above +125°C;

• (c) hermetically sealed.