26
9
SUBAUDIBLE TONE OPERATION
■ Tone squelch operation
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.
q Set the operating frequency.
w Set the desired CTCSS tone in set mode.
•See right for programming.
e Push [V/M] for 2 sec. to enter set mode.
r Rotate [DIAL] until “T/TSQL” appears.
•“T/SQL” disappears after 1 sec. and “tO” appears.
t While pushing [FUNC], rotate [DIAL] to select “TSQL.”
y Push [V/M] to exit set mode and start the tone squelch.
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
and hold [SQL].
i Operate the transceiver in the nor-
mal way.
o To cancel the tone squelch, repeat
steps e–y as described above
and select “OFF” in step t.
➲CONVENIENT
Store subaudible tone frequencies and tone squelch ON/OFF
settings in memories (call) for easy recall.
DSetting 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 p. 23). Like repeater tones, these are set in set
mode.
q Select VFO mode or desired memory channel to be pro-
grammed.
w Push [V/M] for 2 sec. to enter set mode.
e Rotate [DIAL] until “C TONE” (CTCSS tone) appears.
•“C TONE” disappears after 1 sec. and “Ct” appears.
r While pushing [FUNC], rotate [DIAL] to select the desired
CTCSS tone.
•Each operating band and each memory channel have indepen-
dent settings.
t Push [V/M] to exit set mode.
The transceiver has 50 tone frequencies and consequently
their spacing is narrow compared with units having 38
tones. Therefore, some tone frequencies may receive in-
terference from adjacent tone frequencies.
