Tone Squelch Operation; D Tone Squelch Frequency Setting And Operation - Icom ID-4100A Advanced Manual

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10
OTHER FUNCTIONS

Tone squelch operation

The tone squelch opens only when you receive a
signal containing a matching subaudible tone in the
FM or FM narrow mode. You can silently wait for calls
from others using the same tone.
Also, the reversed tone squelch function will mute
the squelch when a signal containing a matched
subaudible tone.

D Tone squelch frequency setting and operation

Step 1. Setting the tone squelch frequency
DUP/TONE... > TSQL Freq
1. Push [V/M] several times until you enter the VFO
mode.
2. Push [MODE] several times until you select the
FM or FM-N (FM narrow) mode.
3. Rotate [DIAL] to set an operating frequency.
4. Push [MENU].
5. Rotate [DIAL] to select "DUP/TONE...," then push
[ï].
6. Select "TSQL Freq," then push [ï].
7. Rotate [DIAL] to set a tone squelch frequency,
then push [ï].
L Set to between 67.0 and 254.1 Hz.
8. Push [MENU].
• Returns to the standby screen.
Step 2. Using the tone squelch
1. Push [QUICK].
2. Select "TONE," then push [ï].
3. Select the tone squelch type. (Example: TSQL)
4. Holding down [PTT] and call a station.
Operate normally.
About the tone squelch type:
• TSQLS: Enables the Tone Squelch with the Pocket
Beep function.
• TSQL: Enables the Tone Squelch function.
• TSQL-R: Enables the Reverse Tone Squelch function.
• TONE(T)/DTCS(R)
("T-DTCS" is displayed, "T" blinks.):
When you transmit, the selected subaudible
tone is superimposed on your normal signal.
When you receive, the DTCS squelch opens
only for a signal that includes a matching
DTCS code and polarity. (Audio is heard)
• DTCS(T)/TSQL(R)
("D-TSQL" is displayed, "D" blinks.):
When you transmit, the selected DTCS code
is superimposed on your normal signal.
When you receive, the tone squelch opens
only for a signal that includes a matching
tone frequency. (Audio is heard)
• TONE(T)/TSQL(R)
("T-TSQL" is displayed, "T" blinks.):
When you transmit, the selected subaudible
tone is superimposed on your normal signal.
When you receive, the tone squelch opens
only for a signal that includes a matching
tone frequency. (Audio is heard)
To sound beeps when a call is received.
If "TSQLS" is selected, beeps sound for 30
seconds and "S" blinks when a call with the
matched tone signal is received.
L Within 30 seconds, push [PTT] to stop the beeps.
("S" disappears) After that, the transceiver selects
the regular tone squelch operation. If you make no
operation for 30 seconds, the beeps automatically
stop, but "S" continues to blink to indicate that you
received a call.
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