Retevis RT628 User Manual page 8

To remove a channel so the radio does not stop on it while scanning,
press and hold UP or DOWN for at least 3 seconds, then release.
This channel temporarily removes the channel from the scan list.
To restore the channel, turn the radio off and then back on.
Note: You cannot remove the channel of your radio setting when you started
the scan (called your home channel)
Your radio can transmit different call tones to other radios in your
group so you can alert them that you want to talk.
To set a call tone:
1. With the radio on, press @3 times. The current call tone ik
flashes CF displays.
2. Press UP or DOWN to change and hear the call tone.
3. Press or to set the new call tone.
To transmit your call tone to other radio, you need to set to the same
channel and Interference Eliminator Code as your radio, then press
©.
Note: Setting the call tone to 0 disables the call tone feature.
Voice activation (VOX) allows you to talk hands-free.
. 1. Press PTT and ©, then turn on the radio.
2. When turn the radio on. displays.
3. To transmit, speak into microphone. There is a short delay between
the time you start talking and when the radio transmits.
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