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VX-127 OPERATING MANUAL 25
CTCSS/DCS/EPCS OPERATION
tarily, then press the PTT switch to save
the new settings and exit to normal op-
eration.
Remember that the 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!
TONE SEARCH SCANNING
In operating situations where you don’t know the CTCSS or DCS tone 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. Two things must be remembered in this regard:
You must be sure that your repeater uses the same tone type (CTCSS vs. DCS).
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 Search
Scanning to work.
To scan for the tone in use:
1. Set the radio up for either CTCSS or DCS Decoder operation (see the previous discus-
sions). In the case of CTCSS, “ ” will appear on the display; in the case of DCS,
” will appear on the display.
2. Press the
[
SET
( )
EMG
]
key momentarily to enter the Set mode.
3. Rotate the DIAL knob to select Set Mode Item 44: SQL.TYP when TONE SQL is
selected, or select Set Mode Item 13: DCS.COD when DCS is selected
4. Press the
[
F
]
key momentarily to enable adjustment of the se-
lected Set Mode Item.
5. Press and hold in the
[
(
MHz
)]
or
[
(
MHz
)]
key for one sec-
ond to start scanning for the incoming CTCSS or DCS tone/
code.
6. When the radio detects the correct tone or code, it will halt on
that tone/code, and audio will be allowed to pass. Press the
[
F
]
key to lock in that tone/code, then press the
[
F
]
key followed by the PTT switch to exit
to normal operation.
If the Tone Scan feature does not detect a tone or code, it will continue to
scan indefinitely. When this happens, it may be that the other station is not
sending any tone. You can press the PTT switch to halt the scan at any time.
DCS OPERATION
DCS CODE
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
27


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