Icom IC-R20 Instruction Manual - Page 70
Tone frequency, DTCS code, DTCS polarity
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10 SET MODE D Tone frequency Sets subaudible tone frequency for tone squelch operation. Total of 50 tone frequencies (67.0-254.1 Hz) are available. (default: 88.5 Hz) TONE-FREQ --88.5 TONE-FREQ 254.1 88.5 Hz setting 254.1 Hz setting • Available subaudible tone frequencies 67.0 79.7 94.8 110.9 131.8 156.7 171.3 186.2 69.3 82.5 97.4 114.8 136.5 159.8 173.8 189.9 71.9 85.4 100.0 118.8 141.3 162.2 177.3 192.8 74.4 88.5 103.5 123.0 146.2 165.5 179.9 196.6 77.0 91.5 107.2 127.3 151.4 167.9 183.5 199.5 203.5 206.5 210.7 218.1 225.7 229.1 233.6 241.8 250.3 254.1 D DTCS code Sets DTCS code for DTCS squelch operation. Total of 104 codes (023-754) are available. (default: 023) DTCS-CODE -023 DTCS-CODE -754 Code 023 setting Code 754 setting • Available DTCS code 023 054 125 165 245 274 356 445 506 627 732 025 065 131 172 246 306 364 446 516 631 734 026 071 132 174 251 311 365 452 523 632 743 031 072 134 205 252 315 371 454 526 654 754 032 073 143 212 255 325 411 455 532 662 036 074 145 223 261 331 412 462 546 664 043 114 152 225 263 332 413 464 565 703 047 115 155 226 265 343 423 465 606 712 051 116 156 243 266 346 431 466 612 723 053 122 162 244 271 351 432 503 624 731 The polarity can also be set in "DTCS polarity" as follow. D DTCS polarity Sets DTCS polarity from normal and reverse. (default: NORMAL) DTCS-POLARITY NORMAL -REVERSE DTCS-POLARITY NORMAL >REVERSE Normal setting Reverse setting 57