Icom IC-R20 Instruction Manual - Page 59
Tone squelch frequency/DTCS code setting
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9 COMFORTABLE RECEIVING ■ Tone squelch frequency/DTCS code setting 88.5 Hz and 023 is set as the default for the tone squelch frequency and the DTCS code, respectively. The frequency and code can be selected as desired. q Push [8 SET] for 1 sec. to enter set mode. wRotate [R-DIAL] to select "SET EXPAND," then push [8 SET]. eRotate [R-DIAL] to turn the expanded set mode ON, then push [8 SET]. rRotate [R-DIAL] to select "TONE FREQ" when selecting the tone squelch frequency; select "DTCS CODE" when selecting the DTCS code, then push [8 SET]. Tone squelch frequency selection ***-SET-MODE OFFSET-FREQ -DUPLEX >TONE-FREQ -DTCS-CODE -DTCS-POLARITY -BANK-LINK DTCS code selection ***-SET-MODE OFFSET-FREQ -DUPLEX -TONE-FREQ >DTCS-CODE -DTCS-POLARITY -BANK-LINK SET Push 8 SET Push 8 TONE-FREQ 88.5 DTCS-CODE 023 tRotate [R-DIAL] to select the desired tone squelch frequency or DTCS code, then push [8 SET]. • See the tables at below. y Push [DUALWATCH] to exit set mode. • Available tone frequency list 67.0 79.7 94.8 110.9 131.8 156.7 171.3 186.2 203.5 229.1 69.3 82.5 97.4 114.8 136.5 159.8 173.8 189.9 206.5 233.6 71.9 85.4 100.0 118.8 141.3 162.2 177.3 192.8 210.7 241.8 74.4 88.5 103.5 123.0 146.2 165.5 179.9 196.6 218.1 250.3 77.0 91.5 107.2 127.3 151.4 167.9 183.5 199.5 225.7 254.1 NOTE: The receiver has 50 tone frequencies and consequently their spacing is narrow compared to units having 9 38 tones. Therefore, some tone frequencies may receive interference from adjacent tone frequencies. • Available DTCS code list 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 46