FT-250R O PERATING M ANUAL 17Advanced OperationTONE S EARCH S CANNINGIn operating situations where you don’t know the CTCSS or DCS tone being used byanother 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:P You must be sure that your repeater uses the same tone type (CTCSS vs. DCS).P 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 SearchScanning to work.To scan for the tone in use:c Set the radio up for either CTCSS or DCS Decoder operation (see the previous discus-sion). In the case of CTCSS, “T SQT SQT SQT SQT SQ” will appear on the display; in the case of DCS,“DCSDCSDCSDCSDCS” will appear on the display.d Press the [F/L] key, then immediately press the [2(CODE)] key to select the “TN SETTN SETTN SETTN SETTN SET”Menu item (when TONE SQL is selected) or “DCS SETDCS SETDCS SETDCS SETDCS SET” (during DCS operation).e Press the [F/L] key, then press and hold in the [V(MHz)] or [W(MHz)] key to startscanning for the incoming CTCSS or DCS tone/code.f When the radio detects the correct tone or code, it will halt on that tone/code, andaudio will be allowed to pass. Press the [F/L] key to lock in that tone/code.g Press the [F/L] key, then press the PTT key to save the new settings and exit to normaloperation.If the Tone Scan feature does not detect a tone or code, it will continue to scan indefi-nitely. When this happens, it may be that the other station is not sending any tone. Youcan press the PTT switch to halt the scan at any time.You also can press the MONI key during Tone Scanning to listen to the (muted) signalfrom the other station. When you release the MONI key, Tone Scanning will resumeafter about a second.CTCSS/DCS B ELL O PERATIONDuring CTCSS Decode or DCS operation, you may set the FT-250R up such that a ring-ing “Bell” sound alerts you to the fact that a call is coming in. Here is the procedure foractivating the Bell will ring in accordance with this programming.c Set the transceiver up for CTCSS Decode (“TONE SQL”) or DCS operation, as de-scribed previously.d Adjust the operating frequency to the desired channel.e Press the [F/L] key, then press the [0(SET)] key to activate the Set mode.f Rotate the DIAL to select Menu Item #18 (“BELLBELLBELLBELLBELL”).g Press the [F/L] key to enable adjustment of the Bell ringer.h Rotate the DIAL to set the desired number of rings of the Bell. The available choicesare 1, 3, 5, or 8 rings, REPEAT (continuous ringing), or OFF.i Press the PTT key momentarily to save the new setting and exit to normal operation.When a station calls you whose transceiver is sending a CTCSS tone or DCS code whichmatches that set into your Decoder, the Bell will ring in accordance to this programming.