Tag Archives :Retevis RT76P GMRS RADIO
How to Upgrade Retevis RT76P Firmware
- Aug 20,2022
- Vivian
- 0 Comments
- None
RT76P firmware Cancel Preset CTCSS/DCS: Press the "PTT+9" together, then turn on the radio, when hearing " off", the preset CTCSS tones are canceled. ...