9 COMFORTABLE RECEIVING

Tone/DTCS squelch operation

The tone or DTCS squelch opens only when receiving a sig- nal with the same pre-programmed subaudible tone or DTCS code, respectively. You can silently wait for the specified sig- nal using the same tone.

qSet the desired frequency in FM mode.

wWhile pushing [7 TONE], rotate [R-DIAL]to select the de- sired squelch condition from “TSQL,” “TSQLS,” “DTCS,” “DTCSS,” “VSC” and “OFF.”

One of “TSQL,” “ TSQLS,” “DTCS,” “DTCSS” and “VSC” appears according to the squelch selection.

 

 

 

-DUP TSQL

AFC

 

 

-DUP TSQL

AFC

MODE FM

 

MODE FM

 

OFF: (No indication)

 

Tone squelch selection

 

 

 

-DUP VSC

AFC

 

 

-DUP TSQL

AFC

 

 

 

 

MODE FM

 

MODE FM

 

VSC selection

 

Tone squelch with pocket

 

 

 

 

 

beep function selection

 

 

 

-DUP DTCS

AFC

 

 

-DUP DTCS

AFC

 

 

 

 

 

 

MODE FM

 

MODE FM

 

DTCS with pocket beep

DTCS selection

 

function selection

 

 

 

 

 

[R-DIAL]

TONE

7

-DUP TSQL AFC MODE FM ANL

145 975

PSKIP

TSQL appears

eWhen a signal with the matched tone is received, the squelch opens and the receiver emits audio.

When pocket beep function is activated, the receiver also emits beep tones and blinks “S”.

• Beep tones sound and “S” blinks for 30 sec.

rPush [DUALWATCH] to stop the beeps and blinking man- ually.

S” disappears and the pocket beep function is deactivated. tTo cancel the tone squelch or DTCS, rotate [R-DIAL]while

pushing [7 TONE] to tone indication disappears.

NOTE: The VSC (Voice Squelch Control) function opens

the squelch only when receiving a modulated signal. This

function is very useful while scanning, the VSC pauses

only when modulated signals are received. Scanning con- tinues when unmodulated or beat signals are received.

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Icom IC-R20 Comfortable Receiving, Tone/DTCS squelch operation, Push Dualwatch to stop the beeps and blinking man- ually