Retevis RA89 User Manual page 18

Like above setting:
Channel 1: ANI display;
Channel 2: remote stun code;
Channel 3: remote waken from stun state;
Channel 4: remote kill code;
Channel 5: remote waken from kill state;
5.Signal choose DTMF
6.Remote kill/waken/stun operation.
After setting like above, if you would like to achieve Radio A kill Radio B, there are two ways to achieve:
One: At programming software DTMF setting choose Ch 4. Then press the PTT and side key 1 to achieve remote radio B.
Two: At radio, choose Menu 10th—DT CH—Channel number choose 4. Then press the PTT key and the side key 1 to achieve remote
radio B.
Similar operation for remote stun/waken.
2 TONE Operation
2 Tone encodes
Input: the frequency of first tone and second tone.
Note: the frequency between the first tone and second tone should not be too similar to avoid the decoding being wrong.
2 Tone decodes
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
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