OPERATION 5

Receiving and transmitting

NOTE: Transmitting without an antenna may damage the trans- ceiver. See p.4 for antenna attachment.

Turn power ON as described on p. 2.

Program the SIMPLEX/DUPLEX OPERATION and CTCSS /DTCS tone number (select CH 0 if you will not use the CTCSS function) before operation.

Receiving:

qSelect the desired channel.

wListen for a transmission and adjust [VOL] to a comfortable lis- tening level.

When no transmission is heard, push and hold [MONI] while adjusting [VOL].

The transceiver is now set to receive desired calls on the selected channel.

Transmitting:

Wait for the channel to become clear to avoid interference.

eWhile pushing and holding [PTT], speak into the microphone at a normal voice level.

rRelease [PTT] to return to receive.

IMPORTANT: To maximize the readability of your transmitted sig- nal, pause a few sec. after pushing [PTT], hold the microphone 10 to 15 cm from your mouth and speak at a normal voice level.

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Icom IC-F21GM instruction manual Operation, ‘ Receiving and transmitting