scope:

The present document applies to constant envelope angle modulation systems for use in the land mobile service, using the available bandwidth, operating on radio frequencies between 30 MHz and 1 000 MHz, with channel separations of 12,5 kHz, 20 kHz and 25 kHz intended for non-speech transmissions (more specifically, transmissions of signals used to initiate a specific response in the receiver). It applies to non-speech and to the non-speech part of combined speech/non-speech equipment having an antenna connector. In the present document non-speech radio equipment is defined as radio equipment transmitting a signal to initiate a specific response in the receiver. The equipment comprises a transmitter and associated encoder and/or a receiver and associated decoder. The encoder and/or the decoder may be a separate piece of equipment, in which case compliance with the present document covers the combination of encoder and/or decoder and transmitter and/or receiver equipment.