Subaudible Tones; I Tone Squelch - Icom IC-V8 Instruction Manual

SUBAUDIBLE TONES

I Tone squelch

D Operation
The tone squelch opens only when receiving a signal containing a
matching subaudible tone. You can silently wait for calls from group
members using the same tone.
q Set the operating frequency.
• Set the AF and squelch to the desired level as the normal operation.
w Set the desired subaudible tone in the
• See page 38 for programming.
e Push [A•
FUNC
• Repeat several times until " " appears when selecting CTCSS, or
" " appears when selecting DTCS.
D
r 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 and hold [SQL].
t Operate the transceiver in the normal way.
y To cancel the tone squelch, push [A•
• Repeat several times until " " or " " disappears.
NOTE: The transceiver has 50 tone frequencies and conse-
quently their spacing is narrow compared to units having 38
tones. Therefore, some tone frequencies may receive interfer-
ence from adjacent tone frequencies.
To prevent interference from adjacent tone frequencies, using
the frequencies as in the following table, is recommended.
• Recommended tone frequencies
67.0 77.0
69.3 79.7
71.9 82.5
74.4 85.4
], then push [1•
88.5 100.0 114.8
91.5 103.5 118.8
94.8 107.2 123.0
97.4 110.9 127.3
SET MODE
].
TONE
], then push [1•
FUNC
D
131.8 151.4
136.5 156.7
141.3 162.2
146.2 167.9
9
.
TONE
173.8 203.5 233.6
179.9 210.7 241.8
186.2 218.1 250.3
192.8 225.7
8
9
].
37