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8
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 in an ama-
teur band.
q Set the operating frequency.
w Set the desired subaudible tone in
expanded set mode.
• See right for programming.
e Push [V/M] for 2 sec. to enter ex-
panded set mode.
r Rotate [DIAL] until "TSQL" ap-
pears.
• Turn the expanded set mode ON for
selection. (p. 25)
• "TSQL" 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 To cancel the tone squelch, repeat steps e–y as de-
scribed above and select "OFF" in step t.
22
D Setting subaudible tones for tone squelch
q Select VFO mode or desired memory channel to be pro-
w Push [V/M] for 2 sec. to enter expanded set mode.
e Rotate [DIAL] until "TONE" appears.
r While pushing [FUNC], rotate [DIAL] to select a subaudible
Tone function set mode
t Push [V/M] to exit set mode.
• Available subaudible tone frequencies
Tone squelch is ON.
Store subaudible tone frequencies and tone squelch ON/OFF
settings in memories for easy recall.
operation
grammed.
• Turn the expanded set mode ON for selection. (p. 25)
• "TONE" disappears after 1 sec. and "Ct" appears.
tone.
• Each operating band and each memory channel have indepen-
dent settings.
67.0
82.5
100.0
123.0
151.4
69.3
85.4
103.5
127.3
156.7
71.9
88.5
107.2
131.8
159.8
74.4
91.5
110.9
136.5
162.2
77.0
94.8
114.8
141.3
165.5
79.7
97.4
118.8
146.2
167.9
CONVENIENT
(unit: Hz)
171.3
189.9
210.7
250.3
173.8
192.8
218.1
254.1
177.3
196.6
225.7
179.9
199.5
229.1
183.5
203.5
233.6
186.2
206.5
241.8
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