26
9
SUBAUDIBLE TONE OPERATION
■ Tone squelch
D Operation
The tone squelch opens only when receiving a signal con-
taining a matching subaudible tone. You can silently wait for
calls from group members using the same tone.
➀ Set the operating frequency.
➁ Set the desired subaudible tone in set mode.
• See right for programming.
➂ Push [C T] one or more times until “TSQL” appears.
➃ 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 [ ].
➄ Operate the transceiver in the normal way.
➅ To cancel the tone squelch, push [C T].
NOTE: The transceiver has 50 tone frequencies and con-
sequently their spacing is narrow compared to units hav-
ing 38 tones. Therefore, some tone frequencies may
receive interference from adjacent tone frequencies.
✔ CONVENIENT
Store subaudible tone frequencies and tone squelch on/off
settings in memories (call) for easy recall.
D Setting subaudible tones for
tone squelch operation (CTCSS tones)
Separate tone frequencies can be set for tone squelch oper-
ation than for repeater operation (the same range of tones is
available—see below). Like repeater tones, these are set in
set mode.
➀ Select VFO or a memory channel.
➁ Push [A V] for 1 sec. to enter set mode.
➂ Push [t] one or more times until
“Ct” appears.
➃ Push [Y]/[Z] to select the desired
subaudible tone.
➄ Push [A V] to program the selected tone and exit set mode.
When set mode is selected from memory mode:
➅ Push [B M].
➆ Push [A V].
➇ Push [B M] for 1 sec.
Available subaudible tone frequencies (unit: Hz)
67.0 79.7 94.8 110.9 131.8 156.7 171.3 186.2 203.5 229.1
69.3 82.5 97.4 114.8 136.5 159.8 173.8 189.9 206.5 233.6
71.9 85.4 100.0 118.8 141.3 162.2 177.3 192.8 210.7 241.8
74.4 88.5 103.5 123.0 146.2 165.5 179.9 196.6 218.1 250.3
77.0 91.5 107.2 127.3 151.4 167.9 183.5 199.5 225.7 254.1
USING
SET MODE