Yaesu FT-1900E Operating Manual

25FT-1900E OPERATING MANUALDCS 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 – – – – – –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 thandoes CTCSS. The DCS Encoder/Decoder is built into your FT-1900E, and operation isvery similar to that just described for CTCSS. Your repeater system may be configured forDCS; if not, it is frequently quite useful in Simplex operation if your friend(s) use trans-ceivers equipped with this advanced feature.Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCSand that you select a Tone Code.1. Press and hold in the [MHz(SET)] key for one second, thenrotate the DIAL knob to select “49 SQL.TYP.”2. Press the [MHz(SET)] key, then rotate the DIAL knob un-til “DCS” appears on the display; this activates the DCSEncoder/Decoder.3. Now press the[MHz(SET)]key momentarily, then rotate the DIAL knobto select Menu “14 DCS CD.”4. Press the [MHz(SET)] key momentarily toenable the adjustment of the DCS code.5. R o t a t e t h eDIAL knob toselect the desired DCS Code (a three-digitnumber).6. When you have made your selection, press and hold in the [MHz(SET)] key for onesecond to save the new setting and exit to normal operation.1)Remember that the DCS is an Encode/Decode system, so your receiver willremain muted until a matching DCS code is received on an incoming transmis-sion. Switch the DCS off when you’re just tuning around the band!2)Press the [REV(DW)] key as described in procedure “6”.You can now set the transmit DCS code. Rotate the DIALknob until the desired DCS code is displayed. “tt” is displayedat the right of the DCS code indication. When the [REV(DW)]key is pushed again “rt” is displayed along with the receiveDCS code.3)When the encoder and decoder DCS codes are different,a solid decoder icon and a blinking encoder icon will be dis-played.CTCSS/DCS/EPCS O PERATION: Receive DCS: Transmit DCS