Icom IC-F21S Instruction Manual page 9

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PROGRAMMABLE FUNCTIONS
D D SCAN FUNCTION
The scan function allows you to search a pre-programmed group
of channels for signals.
Push the [Scan] switch to start/stop scan.
• Scan pauses on a channel when receiving a signal.
• "Lockout SCAN" (pre-programmed list SCAN) or "Priority SCAN"
can be pre-programmed.
• When the "Power-save function" is activated, the transceiver
checks all pre-programmed channels then returns to the "Power-
save function" again.
D D HIGH/LOW POWER OUTPUT
This function selects high or low power for a channel.
Push the [High/Low] switch to toggle between high and low power.
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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 trans-
ceiver has 2 conditions for receive standby:
Audible condition:
This condition mutes audio ONLY when
no carrier is present. You can receive (or
monitor) any signals on a channel.
• Push and hold the [Moni], switch to se-
lect the audible condition.
All signals are
Any audio mute functions are cancelled
received
while pushing the [Moni] switch.
Inaudible condition:
This condition mutes ALL signals except
those directed to you. Therefore you
should check a channel's condition (busy
or not) with the monitor function before
Only signals con-
transmitting.
taining the proper
• Push the [Moni] switch momentarily to
tone are received
select the inaudible condition.
D D TALK AROUND
The talk around function changes duplex channels to simplex chan-
nels.
• Duplex allows you to contact your base station, repeaters, etc.
• Simplex allows you to contact other portable transceivers directly
(portable-to-portable contact).
Push the [Talk Around] switch one or more times to toggle the func-
tion ON and OFF.
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PROGRAMMABLE FUNCTIONS
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