Icom IC-R1500 Instruction Manual

Also see for IC-R1500: Service manual Instruction manual

338 POCKET BEEP AND TONE SQUELCH■ Tone/DTCS squelch operationThe tone or DTCS squelch opens only when receiving a sig-nal with the same pre-programmed subaudible tone or DTCScode, respectively. You can silently wait for the specified sig-nal using the same tone.q Set the operating frequency in FM mode.w Program the CTCSS tone frequency or DTCS code in setmode. ((p. 31))e Push and hold [MONI•T/T-SCAN] for 1 sec. to entertone squelch selection mode, then rotate [DIAL] until “ ”or “ ” appears in the function display.r When a signal with the matched tone is received, thesquelch opens and the receiver emits audio.• When the received signal includes an unmatched tone, thesquelch does not open. However, the S-meter indicator showsthe received signal strength.• To open the squelch manually, push [MONI•T/T-SCAN].t To cancel the tone squelch or DTCS squelch function, re-peat steps e until “oFF” appears, then push any switch.D Reverse action for tone or DTCS squelch➥ Enter tone squelch selection mode as described in stepsq to e as shown left, then rotate [DIAL] to select eitherreverse action for the tone or DTCS squelch as below.for DTCSfor Tone squelchTone OFF settingDTCS settingTone squelch settingHow does the Reverse action work?When the reverse action is selected for either the tonesquelch, “tSqL-r,” or DTCS squelch, “dtCS-r,” and a signalwith the matched tone (or DTCS) is received, the squelchcloses, and the receiver mutes the signal. You can listen inthe signals any other than the specified one, if it’s with tone.