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Advanced Programming
6. When the scanner has successfully received all data, turn the scanner off
and remove the cable.
7. Turn the scanner on again.
CTCSS/DCS
Continuous Tone Coded Squelch System (CTCSS) and Digital Coded
Squelch (DCS) are subaudible tone signaling systems sometimes referred
to as PL or DPL (Motorola's trademarked terms for Private Line and Digital
Private Line, respectively). CTCSS and DCS are used only for FM signals
and are usually associated with both amateur and commercial two-way
frequencies. These systems make use of a special subaudible tone that
accompanies a transmitted signal.
CTCSS and DCS are used for many purposes. In many cases, CTCSS and
DCS are used to restrict access to a commercial repeater, so that only those
units which transmit the correct tone along with their signal can "talk" to the
repeater. CTCSS and DCS are also used in areas that receive interference
where there are several stations with output frequencies that interfere with
each other.
A scanner equipped with CTCSS and DCS allows squelch to open only when
the tone you have programmed with a specific frequency is received along
with a transmission.
Programming CTCSS/DCS Codes
1. From Manual Mode, press ENT/PGM to put the scanner in Programming
Mode.
2. Press FUNC + CL/CTCSS/DCS to put the scanner in Program CTCSS/
DCS Mode. "NO TONE" flashes on the bottom-right corner.
NO TONE
3. Repeatedly press FUNC + CL/CTCSS/DCS to put the scanner in
program CTCSS Mode when you want to program a CTCSS frequency.
Note: To program a DCS code, repeatedly press FUNC, and then press
CTCSS/DCS until DCS code appears on the display.
60
4. Press
or
to select a CTCSS frequency or use the number keys to
enter a valid frequency.
5. Press ENT/PGM to store the CTCSS frequency.
6. Repeat steps 2 – 5 until you enter all the desired frequencies.
You can search for the following CTCSS frequencies and DCS codes.
CTCSS Frequencies (Hz)
67.0
69.3
71.9
82.5
85.4
88.5
100.0
103.5
107.2
123.0
127.3
131.8
151.4
156.7
159.8
171.3
173.8
177.3
189.9
192.8
196.6
210.7
218.1
225.7
250.3
254.1
DCS Codes (Octal)
023
025
026
031
051
053
054
065
114
115
116
122
143
145
152
155
174
205
212
223
245
246
251
252
266
271
274
306
332
343
346
351
411
412
413
423
452
454
455
462
506
516
523
526
612
624
627
631
703
712
723
731
Advanced Programming
74.4
77.0
79.7
91.5
94.8
97.4
110.9
114.8
118.8
136.5
141.3
146.2
162.2
165.5
167.9
179.9
183.5
186.2
199.5
203.5
206.5
229.1
233.6
241.8
032
036
043
047
071
072
073
074
125
131
132
134
156
162
165
172
225
226
243
244
255
261
263
265
311
315
325
331
356
364
365
371
431
432
445
446
464
465
466
503
532
546
565
606
632
654
662
664
732
734
743
754
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