Icom IF4021T/S Marine Radio User Manual


 
8
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PANEL DESCRIPTION
PRIO A/B KEYS
Push to select Priority A or Priority B channel.
Push and hold [Prio A (Rewrite)] or [Prio B (Rewrite)] for 1
sec. to reassign the operating channel to Priority A or
Priority B channel.
MR-CH 1/2/3/4 KEYS
Push to select memory channels 1 to 4 in the operating zone
directly.
MONI KEY
Mute and release the CTCSS (DTCS) or 2-tone squelch
mute. Open any squelch/deactivate any mute while pushing
and holding this key.
LOCK KEY
Push and hold for 1 sec. to electronically lock all program-
mable keys except the following:
[Call] (incl. Call A and Call B), [Moni] and [Emergency].
Push and hold for 1 sec. again to turn the lock function
OFF.
HIGH/LOW KEY
Push to select the transmit output power temporarily or per-
manently, depending on the pre-setting.
•Ask your dealer for the output power level for each selection.
C.TONE CH ENT KEY
Push to select the continuous tone channel using
[CH Up]/[CH Down] to change the tone frequency/code set-
ting. The selected channel remains set as the continuous
tone channel until another channel is designated as such.
TALK AROUND KEY
Push to turn the talk around function ON and OFF.
•The talk around function equalizes the transmit frequency to the
receive frequency for transceiver-to-transceiver communication.
WIDE/NARROW KEY
Push to toggle the IF bandwidth between wide and narrow.
DTMF AUTODIAL KEY
Push to enter the DTMF channel selection mode. Then
select the desired DTMF channel using [CH Up]/[CH
Down].
After selecting the desired DTMF channel, push this key to
transmit the DTMF code.
RE-DIAL KEY
Push to transmit the last-transmitted DTMF code.