# The Wireless Telegraphy (Network User Stations) (Exemption) Regulations 1997, Paragraph 2: Public Mobile Operator Licences


Cellular radiotelephone systems licensed for use in the following services on the relevant frequency bands—
(a) cellular radiotelephones:
Extended Total Access Communications System (ETACS):
872—888 MHz (MTx)
917—933 MHz (BTx)
Total Access Communications System (TACS):
890—905 MHz (MTx)
935—950 MHz (BTx)
(b) digital cellular radiotelephones:
Global System for Mobile communications (GSM):
905—915 MHz (MTx)
950—960 MHz (BTx)
(c) digital cellular PCN radiotelephones:
Personal Communications Network (PCN):
1805—1880 MHz (MTx)
1710—1785 MHz (BTx)
For the purposes of this Schedule—
(i) “MTx” means Mobile Transmit, the frequency on which a user station transmits and a base station receives; and
(ii) “BTx” means Base Transmit, the frequency on which a base station transmits and a user station receives.

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Source: https://www.legislation.gov.uk/uksi/1997/2137/schedule/1/paragraph/2 (the official version)
Page: https://openlegislation.uk/wireless-telegraphy-network-user-stations-exemption-regulations-1997/schedule-1/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.