Icom IC-F3, Instruction Manual

Page: 7 / 20

DEALER-PROGRAMMABLE FUNCTIONS
3
5
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.
•
Push and hold the [MONI/AUDI], switch to
select the audible condition.
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
before transmitting.
•
Push the [MONI/AUDI] switch momentar-
ily to select the inaudible condition.
P0 P 1 P2 P3
1 2
5
8
0
4
7 9
6
3 A
B
C
D
All signals are
received
P0 P 1 P2 P3
1 2
5
8
0
4
7 9
6
3 A
B
C
D
Only signals
containing
the proper
tone are
received
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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