Retevis RT-628 User Manual

Walkie-Talkie
User Manual and Instruction
Getting Started
Installing the AA Batteries
Your radio uses 3 AA Alkaline batteries.
1. With the back of the radio facing you, lift the battery latch
up to release the battery cover and remove.
2. Insert 3 AA Alkaline batteries as shown on the inside of
the battery compartment.
3. Reposition the battery cover and press down to secure.
The Walkie-Talkie can use a NiMH rechargeable battery instead of 3 AA
Alkaline batteries.
Battery Meter
The battery icon shows the battery charge level, from full to
empty .When the battery is empty, the radio chirps periodically
after releasing
. The radio powers off when the voltage drops
below a predetermined level to protect the rechargeable battery.
Note: Remove the batteries before storing your radio for extended periods
of time. Batteries corrode over time and may cause permanent damage to
your radio.
Turning Your Radio On and Off
After you insert batteries turn the radio on, the radio chirps and the display
briefly shows all feature icons available on your radio. The display then
scrolls through the available channels and Interference Eliminator Codes.
Press and hold
button turn the radio off.
Setting the Volume
Page 1

Retevis RT-628 Specifications

General

Brand	Retevis
Model	RT-628
Category	Two-Way Radio
Language	English

Summary

Getting Started

Installing the AA Batteries

Instructions for installing 3 AA Alkaline or NiMH batteries into the radio.

Battery Meter

Explains the battery icon, low battery indicator, and automatic power-off feature.

Turning Your Radio On and Off

Steps to power the radio on and off, including initial display indicators and the power-off button.

Radio Operations

Control Buttons Functions

Describes the functions of key buttons like Scan, UP/DOWN, J/MON, and MENU.

Setting a Channel

Procedure to set the desired communication channel for the radio.

Talking and Listening

Guidelines for communicating, including press-to-talk and listening procedures.

Checking Channel Before Transmitting

How to check for channel activity before transmitting to ensure clear communication.

Advanced Features

Interference Eliminator Code

Setting codes to minimize interference and improve communication clarity.

Push to Talk Timeout Timer

Mechanism to prevent accidental transmissions and conserve battery life.

Locking the Keypad

How to lock and unlock the radio's keypad to prevent unintended setting changes.

Scanning Channels

Instructions for monitoring channels for transmissions or locating other users.

Setting and Transmitting Call Tones

Procedure to set and transmit distinct call tones to alert other radios.

Voice Activation (VOX)

Enables hands-free transmission by speaking into the microphone.

Setting the Sensitivity Level

Adjusting sensitivity to minimize noise and pick up soft voices.

Setting the Double Channel Monitor

Configures the radio to monitor a second channel while active on another.

Setting the SQUELCH Level 1-6

Adjusting receive sensitivity to filter out background noise.

Setting the TX POWER LO/HI

Configures the transmit power output to either low or high.

Safety and General Information

Transmit and Receive Procedure

Guidelines for controlling RF exposure during transmission and reception.

Exposure to Radio Frequency Energy

Information on complying with standards for human exposure to RF energy.

Operational Cautions

Important warnings regarding antennas, batteries, and potential hazards.

Battery Charger Safety Instructions

Safety guidelines for using and maintaining the battery charger.