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6.2.2 Changing the DCS Code
1. Rotate the dial in DCS Code Setting mode (while "
2. Press any key other than the MONI key to complete the setting.
• The same DCS code is set for ENC/DEC, differential setting isn't available.
One of the following 104 DCS codes can be selected.
023
025
026
054
065
071
125
131
132
165
172
174
245
246
251
274
306
311
356
364
365
445
446
452
506
516
523
627
631
632
732
734
743
6.2.3 Switching Off DCS
Select DCS-OF in the DCS Code Setting mode to turn it off.
6.2.4 DCS Operation
The squelch unmutes only when the unit receives the matching code.
6.2.5 DET Mode in DCS Operation
DET Setting
If the DET mode in DCS operation is preferred, while in the DCS Code Setting mode
and DCS-OF is displayed, rotate the dial to eliminate the hyphen (DCS OF) then
proceed with the rest of setting sequence.
DET on DCS function stands for Detect-Only mode. In DCS operation, the TX signal
carries a digital code. The RX side, just like TSQ, detects this tone stream and
determines the squelch operation. This DCS code stream is transmitted all the way
through the communication like a CTCSS tone and it is necessary for receiver to
correctly and CONTINUOUSLY receive this DCS stream to hold the squelch open,
otherwise the CPU thinks that the signal is unwanted and it closes the squelch. But
due to noise or weak signal strength etc, sometimes it is difficult to continuously
receive a DCS stream. By activating DET, the receiver opens the squelch when the
first corresponding DCS stream is received, then thereafter, regardless of the status of
the DCS codes, the DCS squelch remains opened.
031
032
036
072
073
074
134
143
145
205
212
223
252
255
261
315
325
331
371
411
412
454
455
462
526
532
546
654
662
664
754
6.Selective Calling
" is displayed).
043
047
051
114
115
116
152
155
156
225
226
243
263
265
266
332
343
346
413
423
431
464
465
466
565
606
612
703
712
723
053
122
162
244
271
351
432
503
624
731
6
37
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