143CONVENTIONAL OPERATION3-t-- Receiving and transmittingNOTE: Transmitting without an antenna may damage the trans-ceiver. See p. 1 for antenna attachment.Receiving:q Rotate [VOL] to turn power ON.w Push [ ] or [ ] to select a channel.e When receiving a call, adjust the audio output level to a comfort-able listening level.Transmitting:Wait for the channel to become clear to avoid interference.q While pushing and holding [PTT], speak into the microphone at anormal voice level.• When a tone signalling system is used, the call procedure de-scribed at left may be necessary.w Release [PTT] to return to receive.IMPORTANT: To maximize the readability of your signal;1. Pause briefly after pushing [PTT].2. Hold the microphone 5 to 10 cm (2 to 4 inches) from yourmouth, then speak into the microphone at a normal voicelevel.