# The Wireless Telegraphy (Ultra-Wideband Equipment) (Exemption) Regulations 2007, Regulation 2: Interpretation


In these Regulations—
“automotive vehicle” has the meaning given for “vehicle” by Article 2 of Council Directive 70/156/EEC on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers, as amended;
“dBm” means decibel milliWatt;
“dBm/MHz” means decibel per milliWatt;
“e.i.r.p.” means equivalent isotropic radiated power;
“equivalent transmission level” means the peak level of transmission contained within a bandwidth which is other than 50 MHz, centred on the frequency at which the highest mean radiated power occurs, and which is the relevant maximum peak e.i.r.p. scaled down by a factor of 20log(50/x)dB, where “x” is the other bandwidth expressed in MHz;
“GHz” means gigahertz;
“indoors” means inside buildings or places in which the shielding will typically provide the necessary attenuation to protect wireless telegraphy against harmful interference;
“mean e.i.r.p. density” means the mean e.i.r.p. measured with a 1 MHz resolution bandwidth, a root-mean-square detector and an averaging time of one millisecond or less;
“MHz” means megahertz;
“peak e.i.r.p.” means the peak e.i.r.p. contained within a 50 MHz bandwidth centred on the frequency at which the highest mean radiated power occurs;
“railway vehicle” has the meaning given by Article 3 of EC Regulation 91/2003 of the European Parliament and of the Council of 16 December 2002 on rail transport statistics, as amended;
“ultra-wideband equipment” means a wireless telegraphy station or wireless telegraphy apparatus incorporating, as an integral part or as an accessory, technology for short-range radiocommunication involving the intentional generation and transmission of radio-frequency energy that spreads over a frequency range wider than 50 MHz, which may overlap several frequency bands allocated to wireless telegraphy.

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Source: https://www.legislation.gov.uk/uksi/2007/2084/regulation/2 (the official version)
Page: https://openlegislation.uk/wireless-telegraphy-ultra-wideband-equipment-exemption-regulations-2007/regulation-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.