Operation Manual

43
4
RECEIVE AND TRANSMIT
Tone squelch operation is a method of communica-
tions using selective calling. Only received signals
having a matching tone will open the squelch. Before
communicating using tone squelch, all members of
your party must agree on the tone squelch frequency
to use.
q Push [MODE] one or more times to select FM
mode.
w Select M4.
•Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
e Push [(F-2)TON] for 1 sec. to enter the FM tone set
mode.
•Push [MENU] one or more times to select “T2 TONE
SQL.”
r Rotate the main dial to set the desired subaudible
tone frequency.
•See left table for available tone frequencies.
•Push [DISPLAY] to exit the FM tone set mode.
t Push [
(F-2)
TON] once or twice to turn the tone
squelch function.
•“TSQL” appears.
y Communicate in the usual manner.
• Push [PTT] to transmit; release to receive.
• Available tone squelch frequencies (Unit: Hz)
CH
VFO A
P O
S1
5
5379
20 40
10
60dB
FM TSQL
SPL
M4 VOX TON
T2
TONE SQL
FM
[MODE] Main dial
[DISPLAY][MENU]
[F-2]
D Tone squelch operation
By monitoring a signal that is being transmitted on a
repeater input frequency, you can determine the tone
frequency necessary to open a repeater.
qDuring tone squelch or repeater operation (“T” or
“TSQL” is displayed, select M4.
•Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M4.
w Push [
(F-2)
TON] for 1 sec. to enter the FM tone set
mode.
•Push [MENU] one or more times to select “T3 T-SQL
SCN” during tone squelch operation or “T3 RPTR-T
SCN” during repeater operation.
•If tone squelch function or tone encoder has not been
selected, this item does not appear.
e Push [
(F-3)
SCN] to toggle the tone scan operation
ON and OFF.
•While scanning, tone frequencies are displayed instead
of the operating frequency.
•When a matched tone is detected, tone scan automati-
cally stops, the matched tone is displayed and the re-
peater tone (or tone squelch tone) setting is
automatically adjusted accordingly.
r Push [DISPLAY] to exit the FM tone set mode.
During repeater
operation.
PO
S1
5
53792040
10
60dB
FM T
T3
RPTR-T
SCN
During tone squelch
operation.
PO
S1
5
53792040
10
60dB
FM TSQL
T3
T-SQL
SCN
Main dial
[DISPLAY][MENU]
[F-2]
[F-3]
67.0
69.3
71.9
74.4
77.0
79.7
82.5
085.4
088.5
091.5
094.8
097.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
159.8
162.2
165.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
210.7
218.1
225.7
229.1
233.6
241.8
250.3
254.1
D Tone scan operation