Icom IC-R20 Instruction Manual - Page 58

9 COMFORTABLE RECEIVING ■ Tone/DTCS squelch operation The tone or DTCS squelch opens only when receiving a signal with the same pre-programmed subaudible tone or DTCS code, respectively. You can silently wait for the specified signal 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. [R-DIAL] TONE 7 -DUP TSQL AFC MODE FM ANL 145 975 PSKIP √ TSQL appears 45 -DUP TSQL MODE FM AFC OFF: (No indication) -DUP TSQL MODE FM AFC Tone squelch selection -DUP VSC MODE FM VSC selection AFC -DUP TSQL MODE FM AFC Tone squelch with pocket beep function selection -DUP DTCS MODE FM AFC DTCS with pocket beep function selection -DUP DTCS MODE FM DTCS selection AFC 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 manually. • "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 continues when unmodulated or beat signals are received.