Comfortable Receiving; Tone/Dtcs Squelch Operation - Icom IC-R20 Instruction Manual

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.
q Set 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.
45
[R-DIAL]
-DUP TSQL
MODE FM ANL
145 975
√
TSQL appears
TONE
7
-DUP
MODE FM
OFF: (No indication)
-DUP
MODE FM
VSC selection
-DUP
MODE FM
DTCS with pocket beep
function selection
eWhen a signal with the matched tone is received, the
AFC squelch opens and the receiver emits audio.
When pocket beep function is activated, the receiver also
emits beep tones and blinks "S".
PSKIP
• 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.
TSQL AFC
-DUP
MODE
Tone squelch selection
VSC AFC
-DUP
MODE
Tone squelch with pocket
beep function selection
DTCS AFC
-DUP
MODE
DTCS selection
TSQL AFC
FM
TSQL AFC
FM
DTCS AFC
FM