Tone squelch operation – Icom COMMUNICATION RECEIVER IC PCR100 User Manual
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7
TONE SQUELCH OPERATION
The tone squelch opens only when receiving a signal con-
taining a matching subaudible tone in FM mode. For exam-
ple, you can silently wait for calls from group members using
the same tone in an amateur band.
D
Using the multi-function receiver screen
q
Click the [FM] button to select FM mode.
w
Click the [T-SQL] button to bring up the [TONE SQUELCH]
dialog box.
• “T-SQL” appears in the function display.
e
Click the [
$
] button, then select the desired tone squelch
frequency.
• Fifty-one tone frequencies from 67.0 to 254.1 Hz are available.
r
Click the close ([
"
]) button to close the [TONE SQUELCH]
dialog box.
t
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.
y
Click the [T-SQL] button to cancel the tone squelch.
• “T-SQL” disappears.
D
Using the simple function receiver screen
q
Click [MENU] and select the ‘Function Controller’ when it
is not displayed.
w
Click the [FM] button in the function controller screen to se-
lect FM mode.
e
Click the [TSQL] button to bring up the [TONE SQUELCH]
dialog box.
• “T-SQL” and tone squelch frequency appear in the information
display.
r
Click the [
$
] button, then select the desired tone squelch
frequency.
• Fifty-one tone frequencies from 67.0 to 254.1 Hz are available.
t
Click the close ([
"
]) button to close the [TONE SQUELCH]
dialog box.
y
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.
u
Click the [TSQL] button to cancel the tone squelch.
• “T-SQL” and tone squelch frequency disappear.
• Available tone squelch frequencies
(unit: Hz)
67.0
69.3
71.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
0
97.4
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