Retevis RT85 - 2 Tone Operation; 2 Tone Encode; 2 Tone Decode; 5 Tone Operation

2 TONE Operation
2 Tone encode
Input: the frequency of first tone and second tone
Note: the frequency between of the first tone and second tone should not too similar to avoid the decoding is wrong.
2 Tone decode
Decode Format: the combination of decode, for example: A-B, you should make sure the frequency of first tone is A, and
second tone is B. Other combination is similar.
5 Tone Operation
5 Tone encode
The write way is same with the DTMF.
5 Tone decode
Function: The function will be achieved when the radio receives the corresponding code.
Select: Turn on squelch
Stun/kill: same with DTMF
Wake: release the state of stun/kill
GUARANTEE
14