Retevis RT628 Two-Way Radio

How do I turn on the Retevis RT628?

Press and hold the Power/On-Off button until the LCD display activates and the current channel is shown. A beep will confirm the device is on.

How do I change channels on the RT628?

Press the Menu button once so the current channel number blinks on the LCD. Press the Up (▲) or Down (▼) buttons to select the desired channel (1-8), then press the PTT button to confirm the setting.

What should I do if my RT628 radio does not turn on?

First, check that the rechargeable batteries are inserted correctly according to the indicated orientation in the battery compartment. Ensure correct polarity, as incorrect insertion can damage both the batteries and the device. If the problem persists, the batteries may need to be recharged or replaced.

How do I insert batteries into the RT628?

Slide the battery compartment cover downwards, insert the rechargeable batteries according to the indicated orientation, and close the battery compartment cover. Ensure correct polarity to avoid damaging the batteries and device.

How do I adjust the volume on the RT628?

Press the Up button (▲) to increase the volume or the Down button (▼) to decrease it. The volume level is indicated by vertical bars on the LCD display.

How do I use the CTCSS sub-channel function on the RT628?

Press the Menu button twice so the current CTCSS sub-channel number and DCS code blink on the LCD. Press the Up (▲) or Down (▼) buttons to select one of the 38 sub-channels (1-38) and the desired DCS code (39-121), then press PTT to confirm. You can turn off the sub-channel function by setting it to 0 (Null).