Continuous Tone Coded Squelch System Tone Frequencies (in Hz)
CTCSS | Freq. Hz | CTCSS | Freq. Hz |
1 | 67.0 | 20 | 131.8 |
2 | 71.9 | 21 | 136.5 |
3 | 74.4 | 22 | 141.3 |
4 | 77.0 | 23 | 146.2 |
5 | 79.7 | 24 | 151.4 |
6 | 82.5 | 25 | 156.7 |
7 | 85.4 | 26 | 162.2 |
8 | 88.5 | 27 | 167.9 |
9 | 91.5 | 28 | 173.8 |
10 | 94.8 | 29 | 179.9 |
11 | 97.4 | 30 | 186.2 |
12 | 100.0 | 31 | 192.8 |
13 | 103.5 | 32 | 203.5 |
14 | 107.2 | 33 | 210.7 |
15 | 110.9 | 34 | 218.1 |
16 | 114.8 | 35 | 225.7 |
17 | 118.8 | 36 | 233.6 |
18 | 123.0 | 37 | 241.8 |
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