Retevis RT-628, User Manual

4

and you can hear the transmission. To respond to the 

transmission, press PTT within 5 seconds,the channel 

will be confirmed

Scan Advance

If the radio stops scanning on a channel you do not 

want to listen to, briefly press and release or to resume 

scanning for the next active channel.

Removing Channels from the Scan List (Nuisance 

Delete Feature)

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)

Setting and Transmitting Call Tones

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 setting flashes        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)

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.

4. To receive, stop talking.

To turn VOX off, press PTT.

Setting the Sensitivity Level

Adjusting your radio’s sensitivity level helps minimize

the possibility of unintended noises triggering a 

transmission and helps the radio pick up soft voice.

1. Press        until       displays.

2. Press UP or DOWN to select the sensitivity level:

    3 = 

High Sensitivity

    for quiet environments

    2 = 

Medium Sensitivity

    for most environments

    3 = 

Low Sensitivity

    for noisy environments

Setting the double channel monitor

1. Press        five times until CH displays, the current 

    channel flashes.

2. Press UP or DOWN to set the monitor channel.

3. Press PTT to save the double channel monitor 

    setting.

4. Then the double channel will flash. 

MENU

MENU

MENU

MENU