Yaesu FT-7800R Operating Manual

Also see for FT-7800R: Brochure & specs Technical supplement

30 FT-7800R OPERATING MANUALTONE S EARCH SCANNINGIn operating situations where you don’t know the CTCSS or DCS tone being used by an-other station or stations, you can command the radio to listen to the incoming signal andscan in search of the tone being used. Two things must be remembered in this regard: You must be sure that your repeater uses the same tone type (CTCSS vs. DCS). Some repeaters do not pass the CTCSS tone; you may have to listen to the station(s)transmitting on the repeater uplink (input) frequency in order to allow Tone Search Scan-ning to work.To scan for the tone in use:1. Set the radio up for either CTCSS or DCS Decoder operation (see the previous discus-sion). In the case of CTCSS, “ENC DEC” will appear on the display; in the case ofDCS, “DCS” will appear on the display.2. Press and hold in the [BAND(SET)] key for 1/2 second to enter the Set mode.3. Rotate the DIAL knob to select Menu #44 (TN FRQ)when CTCSS is selected, or Menu #9 (DCS.COD) dur-ing DCS operation.4. Press the [BAND(SET)] key to enable adjustment ofthe selected Menu Item.5. Press the [SCAN(SEL)] key momentarily to start scan-ning for the incoming CTCSS or DCS tone/code.6. When the radio detects the correct tone or code, it willhalt on that tone/code, and audio will be allowed to pass.Press the [BAND(SET)] key momentarily to lock in thattone/code, then press and hold in the [BAND(SET)]key for 1/2 second to save the new setting and exit tonormal operation.If the Tone Scan feature does not detect a tone or code, it will continue to scanindefinitely. When this happens, it may be that the other station is not sending anytone. You can press the [SCAN(SEL)] key to halt the scan at any time.Tone Scanning works either in the VFO or Memory modes.CTCSS/DCS O PERATION