Dtcs Squelch Operation; D Dtcs Code Setting And Operation; D The Dtcs Code Operation - Icom ID-4100A Advanced Manual

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10
OTHER FUNCTIONS

DTCS squelch operation

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

D DTCS code setting and operation

Step 1. Setting the DTCS code
DUP/TONE... > DTCS Code
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 "DTCS Code," then push [ï].
7. Rotate [DIAL] to set a DTCS code, then push [ï].
L Set to between 023 and 754.
8. Push [MENU].
• Returns to the standby screen.

D The DTCS code operation

1. Push [QUICK].
2. Select "TONE," then push [ï].
3. Select the DTCS code type. (Example: DTCS)
4. Holding down [PTT] and call a station.
Operate normally.
About the DTCS code type:
• DTCSS: Enables the DTCS squelch with the Pocket
Beep function.
• DTCS: Enables the DTCS Squelch function.
• DTCS-R: Enables the Reverse DTCS Squelch
function.
• DTCS(T) ("DTCS" blinks):
When you transmit, the selected DTCS code
is superimposed on your normal signal.
When you receive, the function is OFF.
• 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)
To sound beeps when a call is received.
If "DTCSS" is selected, beeps sound for 30
seconds and "S" blinks when a call with the
matching 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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