Tone Squelch Operation - Icom IC-7600 Instruction Manual

4
RECEIVE AND TRANSMIT

Tone squelch operation

The tone squelch opens only when receiving a sig-
nal containing a matching subaudible tone. You can
silently wait for calls from group members using the
same tone.
q Set the desired frequency band and select FM
mode.
w Push [TONE] (MF7) several times to turn the tone
squelch function ON.
• " " appears
e Push and hold [TONE] (MF7) for 1 sec. to enter
tone frequency set mode.
r Push [Y] (F-1) or [Z] (F-2) to select T-SQL TONE
item.
t Rotate the main dial to select the desired tone
squelch frequency.
• Push and hold [DEF] (F-4) for 1 sec. to select the
default setting.
y Push [EXIT/SET] to return to the previous indica-
tion.
u When the received signal includes a matching
tone, squelch opens and the signal can be heard.
• When the received signal's tone does not match,
tone squelch does not open. However, the S-indicator
shows signal strength.
• To open the squelch manually, push [XFC].
i Operate the transceiver in the normal way.
o To cancel the tone squelch, push [TONE] (MF7) to
clear "TSQL."
• Available tone frequencies
67.0 085.4 107.2
69.3 088.5 110.9
71.9 091.5 114.8
74.4 094.8 118.8
77.0 097.4 123.0
79.7 100.0 127.3
82.5 103.5 131.8
63
(unit: Hz)
136.5 165.5 186.2 210.7
141.3 167.9 189.9 218.1
146.2 171.3 192.8 225.7
151.4 173.8 196.6 229.1
156.7 177.3 199.5 233.6
159.8 179.9 203.5 241.8
162.2 183.5 206.5 250.3
TONE
• Tone frequency set mode
254.1
XFC
F-1 F-2 F-4 EXIT/SET
DEF
Appears
Main dial