User manual YAESU FT-747GX

[. . . ] 2 Accessories & Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] DCS is widely used in the commercial land-mobile industry because of its superior performance, and its 104 unique codes offer greater tone selection than CTCSS. To use either CTCSS or DCS, both stations must be on the same operating frequency, and must have selected the same CTCSS tone or DCS code. Select and activate CTCSS or DCS operation 1. Pressing the [TONE] key to select the desired tone control mode from the following: ¦ "ENC" (Encode) appears when the CTCSS tone generator is activated for transmission only. ¦ "E N C/D E C" (Encode & Decode) appears when the CTCSS tone squelch is activated for both TX & RX CTCSS Tone Generator (only signals "encoded" with the matching tone will open the squelch; your radio will remain silent otherwise). ¦ " " (CTCSS Bell Paging) appears when CTCSS Bell Paging is activated, as described in detail later. CTCSS Tone Squelch ¦ "DCS " (Digital Code Squelch) appears when Digital Code Squelch system (TX & RX) is active. ¦ "OFF" (Tone or digital code system is disabled). Within three seconds of releasing the [TONE] key, use the Main Dial knob (or the microphone's [UP]/[DWN] CTCSS Bell Paging buttons) to select the tone frequency (when "E N C , " "ENC/DEC, " or " " is activated) or DCS code (when "DCS" is activated). Wait a few seconds: the display will revert to its normal status, and your new CTCSS or DCS information will be DSC Code Squelch saved. 26 FT-747GX Operating Manual OPERATION TRANSMISSION Tone Search Scanning In operating situations where you don't know the CTCSS or DCS code being used by another station or stations, you can command the radio to listen to the incoming signal and scan in search of the tone being used. Set the radio up for either CTCSS or DCS Decoder operation (see the previous discussion). When you have selected the correct digit, press the [LOW] Current Digit key momentarily. Now, use the Main Dial knob (or the microphone's [UP]/ [DWN] buttons) to select the second of 16 available digits in the current DTMF Autodialer memory. Repeat this procedure for each digit in the telephone number. If you mistake an error during programming, you may press the [REV] key momentarily as a backspace key. If you wish to erase all digits before the current one, press and hold in the [REV] key for 1/2 second. You may now press the [TONE] key momentarily to review your entry for accuracy. When entry of all digits is complete, press the [BAND] key. This locks the DTMF string into the current register. Use the Main Dial knob (or the microphone's [UP]/[DWN] buttons) to select another DTMF Autodialer memory channel, and repeat the process described above, beginning in step 4. When you are done programming all desired DTMF Autodialer memory channels, press and hold in the [BAND] key for 1/2 second to exit to normal operation. 28 FT-747GX Operating Manual OPERATION TRANSMISSION To transmit the memorized telephone number, used the following procedure: 1. Press the PTT switch to begin transmission. [. . . ] Menu Item 25 [SCAN] Function: Selects the Scan-Resume mode. Available Values: BUSY/TIME Default Setting: BUSY Note: This Menu item can be set independently for each band. Menu Item 26 [SHIFT] Function: Sets the magnitude of the Repeater Shift. Available Values: 0. 00 ~ 99. 50 MHz (50 kHz step) Default Setting: Depends on transceiver version. [. . . ]