The Wireless Telegraphy (Exemption) Regulations 1999

Telemetry and Telecommand: Industrial/Commercial

3.  Wireless telegraphy apparatus designed or adapted for–

(a) Telemetry and Telecommand, so as to be capable of use on one or more of the frequencies or within one of the frequency bands, and at a radiated level not exceeding the maximum for such frequencies or frequency bands, for each category of apparatus, specified in the table below and subject to the following sub-paragraphs;

(b) in category i, channel numbers 1 and 3 to 11 are available with a channel centre frequency of 173.2 MHz + (channel bandwidth × channel number);

(c) in category ii, channel numbers 1 to 5 are available with a channel centre frequency of 173.2 MHz + (channel bandwidth × channel number);

(d) in category iv, channel numbers 1 to 25, 28 to 31 and 33 to 35 are available with a channel centre frequency of 458.5 MHz + (channel bandwidth × channel number);

(e) in category v, channel numbers 1 to 12, 14 to 15 and 17 are available with a channel centre frequency of 458.5 MHz + (channel bandwidth × channel number)–

Category	Frequencies or frequency band	Radiated level	Channel bandwidth	Music or speech permitted	ETSI standard
i	173.2–173.35 MHz	10 mW erp	12.5 kHz	No	EN 300 220–1
ii	173.2–173.35 MHz	10 mW erp	25 kHz	No
iii	173.2–173.35 MHz	10 mW erp	—	No
iv	458.5–458.95 MHz	500 mW erp	12.5 kHz	No
v	458.5–458.95 MHz	500 mW erp	25 kHz	No
vi	2445–2455 MHz	100 mW eirp	—	No	I-ETS 300 440