Icom IC-R20 Instruction Manual

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Contents

Icom IC-R20 Instruction Manual Manual pdf 61 page image

489COMFORTABLE RECEIVING■ Tone scanBy monitoring a signal that is being operated with pocketbeep, tone or DTCS squelch function, you can determine thetone frequency or DTCS code necessary to open a squelch.qSet the frequency to be checked for a tone frequency orcode.wTurn the desired tone type, tone squelch or DTCS, ON byholding [7 TONE] with turning [R-DIAL].• One of “TSQL” or “DTCS” appears.• Even when the pocket beep function is activated, the function iscancelled when starts the tone scan.ePush [4 T-SCAN] for 1 sec. to start the tone scan.• To change the scanning direction, rotate [R-DIAL].r When the CTCSS tone frequency or 3-digit DTCS code ismatched, the squelch opens and the tone frequency orcode is temporarily programmed into the selected condi-tion, such as memory channel.• The tone scan pauses when a CTCSS tone frequency or 3-digitDTCS code is detected.✔ For your convenient!Even if no tone type is selected, either tone squelch or DTCS,pushing [4 T-SCAN] for 1 sec. will also start tone scan. In thiscase, the tone scan searching for tone squelch frequencyonly.☞ NOTE: The decoded tone frequency or code is pro-grammed temporarily when a memory channel is se-lected. However, this will be cleared when the memorychannel is re-selected.√188 0√013DTCS scanTone squelch scan[R-DIAL]T-SCAN4TONE79