Icom IC-F3 Instruction Manual page 7

D D MONITOR AUDIBLE FUNCTION
The monitor function allows you to open the transceiver's
squelch manually to check whether a channel is busy or not.
The transceiver has 2 conditions for receive standby:
Audible condition:
This condition mutes audio ONLY
when no carrier is present. You can re-
ceive (or monitor) any signals on a
channel.
0 P 1 P P 2 P 3
1 2 3 A
•
4 5 6 B Push and hold the [MONI/AUDI], switch to
7 8 9 C
0 D
select the audible condition.
All signals are
received
Any audio mute functions are cancelled
while pushing the [MONI/AUDI] switch.
Inaudible condition:
This condition mutes ALL signals ex-
cept those directed to you. Therefore
you should check a channel's condition
(busy or not) with the monitor function
P 0 P 1 2 P P 3
1 2 3 A
4 5 6 B
7 8 9 C before transmitting.
0 D
Only signals
•
Push the [MONI/AUDI] switch momentar-
containing
the proper
ily to select the inaudible condition.
tone are
received
DEALER-PROGRAMMABLE FUNCTIONS
D D TALK AROUND
The talk around function changes duplex channels to simplex
channels.
• Duplex allows you to contact your base station, repeaters,
etc.
• Simplex allows you to contact other portable transceivers
directly (portable-to-portable contact).
To toggle the talk around function ON and OFF:
Push the [TALK AROUND] switch one or more times.
D D DTMF TRANSMISSION
This function allows you to send a pre-programmed DTMF
code to control a repeater, open another transceiver's
squelch, etc.
Manual transmission:
Push desired digit keys in sequence while pushing [PTT].
• Pushing [PTT] may not be necessary depending on programming.
Automatic pre-programmed transmission:
q Push the [DTMF] switch to select DTMF autodial mode
then push [Y] or [Z] to select the desired channel.
w Push the [DTMF] switch once more to send a DTMF code.
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