# The Wireless Telegraphy (Short Range Devices) (Exemption) Regulations 1993, Regulation 3: Interpretation


In these Regulations—
“authorised person” means any person authorised by the Secretary of State for the purposes of regulation 6;
“erp” means effective radiated power, as defined in the Radio Regulations;
“eirp” means equivalent isotropically radiated power, as defined in the Radio Regulations;
“field strength” means the magnitude of a component of specified polarisation of the electric or magnetic field, and a reference to the field strength of any signal means the field strength of that signal when measured at a distance of 10 metres;
“μA/m” means microamps per metre;
“μV/m” means microvolts per metre;
“μW” means microwatts;
“mW” means milliwatts;
“the Radio Regulations” means the 1990 edition of the Radio Regulations, annexed to the International Telecommunication Convention 1982 pursuant to Articles 43 and 83 of that Convention;
“relevant apparatus” means wireless telegraphy apparatus or apparatus designed or adapted for use in connection with wireless telegraphy apparatus;
“relevant short range device” means any station or apparatus for wireless telegraphy of a description set out in the Schedule hereto; and
“W” means Watts.

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Source: https://www.legislation.gov.uk/uksi/1993/1591/regulation/3 (the official version)
Page: https://openlegislation.uk/wireless-telegraphy-short-range-devices-exemption-regulations-1993/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.