Icom IC-91A Instruction Manual page 104

Vhf/uhf fm transceiver
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11
MENU SCREEN OPERATION
D D TSQL frequency
Selects tone frequency for tone squelch or pocket beep oper-
ation from one of 50 available frequencies
• Available subaudible tone frequencies
67.0
79.7
94.8
110.9
69.3
82.5
97.4
114.8
71.9
85.4
100.0
118.8
74.4
88.5
103.5
123.0
77.0
91.5
107.2
127.3
The transceiver has 50 tone frequencies and consequently
their spacing is narrow compared with units having 38
tones. Therefore, some tone frequencies may receive in-
terference from adjacent tone frequencies.
98
(67.0–254.1 Hz)
(default: 88.5)
131.8
156.7
171.3
186.2
203.5
136.5
159.8
173.8
189.9
206.5
141.3
162.2
177.3
192.8
210.7
146.2
165.5
179.9
196.6
218.1
151.4
167.9
183.5
199.5
225.7
D D DTCS code
Selects DTCS
(both encoder/decoder)
.
operation. Total of 104 codes (023–754) are available.
• Available DTCS codes
023
054
125
229.1
025
065
131
233.6
026
071
132
241.8
031
072
134
250.3
032
073
143
254.1
036
074
145
043
114
152
047
115
155
051
116
156
122
162
053
code for DTCS squelch
165
245
274
356
445
506
172
246
306
364
446
516
174
251
311
365
452
523
205
252
315
371
454
526
212
255
325
411
455
532
223
261
331
412
462
546
225
263
332
413
464
565
226
265
343
423
465
606
243
266
346
431
466
612
244
271
351
432
503
624
(default: 023)
627
732
631
734
632
743
654
754
662
664
703
712
723
731

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