35
SUBAUDIBLE TONES
9
‘‘
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 set mode.
• See right for programming.
e Push [1•
TONE
] after [A•
FUNC
] is pushed.
• Repeat several times until “ ” appears when selecting CTCSS, or
“ ” appears when selecting DTCS.
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 [1•
TONE
] after [A•
FUNC
] is
pushed.
• 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.
