# The Wireless Telegraphy (Ultra-Wideband Equipment) (Exemption) Regulations 2015, Regulation 31: Transmission limits

Extent: E+W+S+N.I.

The condition referred to in regulation 30(4)(b) is that the ultra-wideband equipment only emits transmissions which—
(a) in the frequencies up to 1.215 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -85.0 dBm/MHz; and
(ii) a maximum peak power no greater than -45.0 dBm or the equivalent transmission level;
(iii) a total radiated power spectral density of -90.0 dBm/MHz;
(b) in the frequency band 1.215 GHz to 1.73 GHz when measured in any direction—
(i) have a maximum mean power spectral density —
(aa) no greater than -85.0 dBm/MHz; or
(bb) no greater than -70.0 dBm/MHz provided that a listen before talk mechanism described in harmonised standard ETSI EN 302 065-4 is used to mitigate interference to other users of the electromagnetic spectrum.
(ii) have a maximum peak power no greater than -45.0 dBm or the equivalent transmission level; and
(iii) have a total radiated power spectral density of -90.0 dBm/MHz;
(c) in the frequency band 1.73 GHz to 2.2 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -65.0 dBm/MHz;
(ii) a maximum peak power no greater than -25.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density of -70 dBm/MHz;
(d) in the frequency band 2.2 GHz to 2.5 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -50.0 dBm/MHz;
(ii) a maximum peak power no greater than -10.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density of -55 dBm/MHz;
(e) in the frequency band 2.5 GHz to 2.69 GHz when measured in any direction—
(i) have a maximum mean power spectral density —
(aa) no greater than -65.0 dBm/MHz; or
(bb) no greater than -50.0 dBm/MHz provided that a listen before talk mechanism described in harmonised standard ETSI EN 302 065-4 is used to mitigate interference to other users of the electromagnetic spectrum;
(ii) have a maximum peak power spectral density no greater than -25.0 dBm or the equivalent transmission level; and
(iii) have a total radiated power spectral density of -70.0 dBm/MHz;
(f) in the frequency band 2.69 GHz to 2.7 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -55.0 dBm/MHz;
(ii) a maximum peak power no greater than -15.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density below -65.0 dBm/MHz;
(g) in the frequency band 2.7 GHz to 3.4 GHz when measured in any direction—
(i) have a maximum mean power spectral density —
(aa) no greater than -70.0 dBm/MHz; or
(bb) no greater than -50.0 dBm/MHz provided that a listen before talk mechanism described in harmonised standard ETSI EN 302 065-4 is used to mitigate interference to other users of the electromagnetic spectrum;
(ii) have a maximum peak power no greater than -30.0 dBm or the equivalent transmission level; and
(iii) have a total radiated power spectral density of -75.0 dBm/MHz;
(h) in the frequency band 3.4 GHz to 4.8 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -50.0 dBm/MHz;
(ii) a maximum peak power no greater than -10.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density of -55.0 dBm/MHz;
(i) in the frequency band 4.8 GHz to 5.0 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -55.0 dBm/MHz;
(ii) a maximum peak power no greater than -15.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density below -65.0 dBm/MHz;
(j) in the frequency band 5.0 GHz to 8.5 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -50.0 dBm/MHz;
(ii) a maximum peak power no greater than -10.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density of -55.0 dBm/MHz; and
(k) in the frequency bands above 8.5 GHz when measured in any direction have—
(i) a maximum mean power spectral density no greater than -85.0 dBm/MHz;
(ii) a maximum peak power no greater than -45.0 dBm or the equivalent transmission level; and
(iii) a total radiated power spectral density of -90.0 dBm/MHz.

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Source: https://www.legislation.gov.uk/uksi/2015/591/regulation/31 (the official version)
Page: https://openlegislation.uk/wireless-telegraphy-ultra-wideband-equipment-exemption-regulations-2015/regulation-31
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.