![background image](http://html1.mh-extra.com/html/icom/ic-f21gm/ic-f21gm_instruction-manual_4212033027.webp)
20
5
OPERATION
‘
‘
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:
q
Select the desired channel.
w
Listen 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.
e
While pushing and holding [PTT], speak into the microphone at a
normal voice level.
r
Release [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.