Instruction Notice

the appropriate size tool for your convenience.
CTCSS Standard Frequency Table
The tone
No.
frequency
Hz
The tone
No.
frequency
Hz
The tone
No.
frequency
Hz
1 67 11 97.4 29 179.9
2 71.9 12 100 30 186.2
3 74.4 13 103.5 31 192.8
4 77 14 107.2 32 203.5
5 79.7 15 110.9 33 210.7
6 82.5 16 114.8 34 218.1
7 85.4 17 118.8 35 225.7
8 88.5 18 123 36 233.6
9 91.5 19 127.3 37 241.8
10 94.8 20 131.8 38 250.3