Yaesu FT-7800R Operating Manual

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

29FT-7800R OPERATING MANUALCTCSS/DCS O PERATIONthe [BAND(SET)] key momentarily to save the new set-ting, then press and hold in the [BAND(SET)] key for1/2 second to exit to normal operation.Your repeater may or may not re-transmit a CTCSS tone - some systems just useCTCSS to control access to the repeater, but don’t pass it along when transmit-ting. If the S-Meter deflects, but the FT-7800R is not passing audio, press the [TONE(REV)]key so that “ENC” appears - this will allow you to hear all traffic on the channel beingreceived.DCS O PERATIONAnother form of tone access control is Digital Code Squelch, or DCS. It is a newer, moreadvanced tone system which generally provides more immunity from false paging than doesCTCSS. The DCS Encoder/Decoder is built into your FT-7800R, and operation is verysimilar to that just described for CTCSS. Your repeater system may be configured for DCS;if not, it is frequently quite useful in Simplex operation if your friend(s) use transceiversequipped with this advanced feature.Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCS andthat you select a Tone Code.1. Press the [TONE(REV)] key until “DCS” appears onthe display; this activates the DCS Encoder/Decoder.2. Now, press and hold in the [BAND(SET)] key for 1/2second to enter the Set mode, then rotate the DIAL knobto select Menu #9 (DCS.COD).3. Press the [BAND(SET)] key momentarily to enable theadjustment of the DCS code.4. Rotate the DIAL knob to select the desired DCS Code(a three-digit number).5. When you have made your selection, pressthe [BAND(SET)] key momentarily to savethe new setting, then press and hold in the[BAND(SET)] key for 1/2 second to exitto normal operation.Remember that the DCS is an Encode/Decodesystem, so your receiver will remain muteduntil a matching DCS code is received on anincoming transmission. Switch the DCS offwhen you’re just tuning around the band!CTCSS O PERATIONDCS CODE023 025 026 031 032 036 043 047 051 053054 065 071 072 073 074 114 115 116 122125 131 132 134 143 145 152 155 156 162165 172 174 205 212 223 225 226 243 244245 246 251 252 255 261 263 265 266 271274 306 311 315 325 331 332 343 346 351356 364 365 371 411 412 413 423 431 432445 446 452 454 455 462 464 465 466 503506 516 523 526 532 546 565 606 612 624627 631 632 654 662 664 703 712 723 731732 734 743 754 – – – – – –