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English user manual - Radioddity GD-73
you will receive all signals of the selected reception frequency within the reception
range.
CTCSS (Continuous Tone-Coded Squelch System) and DCS (Digital-Coded Squelch)
are two slightly different methods, but both achieve the same result.
Note
The transmission of CTCSS or DCS is only possible with analogue channels.
CTCSS
The CTCSS feature is often used to enable access to a repeater. The GD-73 supports
51 standard CTCSS subedited tones.
CTCSS
62,5
67,0
69,3
91,5
94,8
97,4
127,3 131,8 136,5 141,3 146,2 151,4 156,7 159,8 162,2 165,5
167,9 171,3 173,8 177,3 179,9 183,5 186,2 189,9 192,8 196,6
199,5 203,5 206,5 210,7 218,1 225,7 229,1 233,6 241,8 250,3
254,1
DCS
DCS on the GD-73 has 214 (2*107) different codes, which can be set by both the PC
software and on the radio itself. DCS also distinguishes between normal DCS and
inverted DCS.
17
23
51
53
116
122
156
162
243
244
266
271
346
351
431
432
466
503
612
624
712
723
CTCSS and DCS are added to the voice transmission in order to positively identify it
as a valid transmission to a similarly equipped receiver. Without a matching CTCSS
or DCS code, the receiver will remain quiet. This is useful to negate the effects of
interference or other unwanted transmissions.
71,9
74,4
77,0
100,0 103,5 107,2 110,9 114,8 118,8 123,0
All frequencies given in Hz
DCS
25
26
31
32
54
65
71
72
125
131
132
134
165
172
174
205
245
246
251
252
274
306
311
315
356
364
365
371
445
446
452
454
506
516
523
526
627
631
632
645
731
732
734
743
All frequencies given in Hz
79,7
82,5
85,4
88,5
36
43
47
50
73
74
114
115
143
145
152
155
212
223
225
226
255
261
263
265
325
331
332
343
411
412
413
423
455
462
464
465
532
546
565
606
654
662
664
703
754
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