Dcs Operation - Yaesu VX-3E Operating Manual

CTCSS/DCS/EPCS O
Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more
advanced tone system which generally provides more immunity from false paging than
does CTCSS. The DCS Encoder/Decoder is built into your VX-3R/E, and operation is
very similar to that just described for CTCSS. Your repeater system may be configured for
DCS. If not, DCS is frequently quite useful in Simplex operation if your friend(s) use
transceivers equipped with this advanced feature.
Just as in CTCSS operation, DCS requires that you set the Tone Mode to
DCS and that you select a digital code.
1. Press the [ F/W ] key, then press the [ MODE ] key. This provides a "Short-cut" to Set
Mode Item 79: SQ TYP.
2. Rotate the DIAL knob until "DCS" appears on the display; this
activates the DCS Encoder/Decoder.
Note: Do not forget to pull the DIAL knob to rotate the DIAL
knob.
3. Press the PTT switch to save the new setting.
4. Press and hold in the [ TXPO ] key for one second to enter the Set mode.
5. Rotate the DIAL knob to select Set Mode Item 24: DCS CD.
6. Press the [ TXPO ] key momentarily to enable the adjustment of
the DCS code.
7. Rotate the DIAL knob to select the desired DCS Code (a three-
digit number). Ask the repeater owner/operator if you don't know
the DCS Code. If you are working simplex, just set up the DCS
Code to be the same as that used by your friend(s).
8. When you have made your selection, press the [ TXPO ] key momentarily, then press
the PTT switch to save the new settings and exit to normal operation.
1) Remember that DCS is an En-
code/Decode system, so your re-
ceiver will remain muted until a
matching DCS code is received on an incom-
ing transmission. Switch the DCS off when
you're just tuning around the band!
2) During DCS operation, you may set up the
VX-3R/E so a ringing "bell" sound alerts you
to an incoming call. See page 37 for details.
30
PERATION
DCS O
PERATION
023 025 026 031 032 036 043 047 051 053
054 065 071 072 073 074 114 115 116 122
125 131 132 134 143 145 152 155 156 162
165 172 174 205 212 223 225 226 243 244
245 246 251 252 255 261 263 265 266 271
274 306 311 315 325 331 332 343 346 351
356 364 365 371 411 412 413 423 431 432
445 446 452 454 455 462 464 465 466 503
506 516 523 526 532 546 565 606 612 624
627 631 632 654 662 664 703 712 723 731
732 734 743 754
DCS CODE
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VX-3R/E O
PERATING
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ANUAL