Retevis RT628 Walkie Talkies Instruction Manual

1. Introduction

Thank you for choosing the Retevis RT628 Walkie Talkies. This manual provides essential information for the safe and effective use of your new two-way radios. Please read this manual thoroughly before operating the devices and retain it for future reference.

2. Safety Information

FCC ID: 2AAR8RETEVISRT628. Our walkie talkies meet FCC part 95 rule. Please use with confidence.

3. Package Contents

Your Retevis RT628 Walkie Talkie package includes:

• 2 x Retevis RT628 Kids Walkie Talkies
• 2 x Belt Clips
• 1 x User Manual

Image: The package contents laid out, showing two walkie talkies, two belt clips, and a user manual.

4. Product Overview

The Retevis RT628 Walkie Talkies are designed for ease of use and durability, featuring a compact and lightweight body suitable for various activities.

4.1. Physical Features

• Dimensions: 1.1 x 2.1 x 6.2 inches
• Weight: 3.17 ounces
• Material: Durable and environmentally friendly ABS+PC material.
• Design: Ergonomically designed for comfortable handling, with rounded corners to prevent scratches.
• Belt Clip: Easy-to-use belt clip for attaching to clothing or bags.

Image: A close-up view of the Retevis RT628 Walkie Talkie, highlighting its compact size and button layout.

4.2. Controls and Display

The walkie talkie features an LCD backlit screen and intuitive buttons for easy operation:

• Power Button: Turns the device on/off.
• Menu Button: Accesses settings and functions.
• Up/Down Buttons: Navigates through channels and settings, adjusts volume.
• PTT (Push-to-Talk) Button: Located on the side, used to transmit voice.
• MON (Monitor) Button: Used to monitor channels.
• Call Tone Button: Sends a call tone to alert other users.
• LCD Screen: Displays current channel number, power display, current sub-code number, and VOX icon.

Image: Detailed view of the walkie talkie's keyboard, LCD screen, and built-in microphone.

Image: The LCD backlit screen of the walkie talkie showing channel, power, and sub-code information in a low-light setting.

5. Setup

5.1. Battery Installation

Each Retevis RT628 Walkie Talkie requires 3 AA batteries (not included). To install batteries:

1. Remove the belt clip by pulling it upwards.
2. Locate the battery compartment cover on the back of the unit.
3. Gently slide the cover downwards to open the compartment.
4. Insert 3 AA batteries, ensuring correct polarity (+/-).
5. Replace the battery compartment cover and reattach the belt clip.

Image: A close-up of the back of the walkie talkie with the battery cover removed, showing the slots for three AA batteries.

5.2. Power On/Off

To power on the walkie talkie, press and hold the ON/OFF button until the LCD screen illuminates. To power off, press and hold the same button until the screen turns off.

6. Operating Instructions

6.1. Basic Communication

For two or more walkie talkies to communicate, they must be set to the same channel and CTCSS (sub-channel code).

1. Turn On: Press and hold the power button on both walkie talkies.
2. Set Channel: Press the MENU button once. The channel number will flash. Use the UP/DOWN buttons to select your desired channel (1-22). Press the PTT button to confirm.
3. Set CTCSS: Press the MENU button twice. The CTCSS number will flash. Use the UP/DOWN buttons to select your desired sub-code. Press the PTT button to confirm. Ensure all devices are on the same channel and CTCSS.
4. Talk: Press and hold the PTT button on the side of the walkie talkie to speak. Release the PTT button to listen.

Image: Two hands holding walkie talkies, demonstrating the ease of making calls with a clear display of channel 18.

6.2. VOX Hands-Free Function

The VOX (Voice Operated Exchange) function allows you to transmit without pressing the PTT button. To activate VOX:

1. Press the MENU button four times until the VOX icon appears on the screen.
2. Use the UP/DOWN buttons to select the VOX sensitivity level (1-3, with 3 being most sensitive).
3. Press the PTT button to confirm. A small icon in the bottom right corner of the screen indicates VOX hands-free mode is active.

6.3. Key Lock Function

To prevent accidental channel changes or setting adjustments, you can lock the keypad:

• Lock: Press and hold the MENU button for 3 seconds until a lock icon appears on the screen. The menu, up, and down buttons will now be locked.
• Unlock: Press and hold the MENU button again for 3 seconds until the lock icon disappears.

6.4. Call Tone

To send a call tone to another walkie talkie on the same channel, briefly press the Call Tone button (musical note icon).

6.5. Monitor Function

To temporarily disable squelch and listen for weak signals on the current channel, press and hold the MON button.

7. Maintenance

• Cleaning: Use a soft, damp cloth to clean the exterior of the walkie talkie. Do not use harsh chemicals or abrasive cleaners.
• Battery Care: Remove batteries if the device will not be used for an extended period to prevent leakage. Replace all 3 AA batteries at the same time.
• Storage: Store the walkie talkies in a cool, dry place away from direct sunlight and extreme temperatures.

8. Troubleshooting

8.1. No Communication / Static

• Ensure all walkie talkies are powered on and have sufficient battery life.
• Verify that all devices are set to the exact same channel and CTCSS sub-code.
• Check the distance between devices. The maximum talking range is approximately 1 kilometer (0.62 miles) under optimal conditions. Obstacles like buildings, hills, or dense foliage can significantly reduce range.
• Use the MON button to check for weak signals or interference on the current channel.

8.2. Loud Button Beeps / Roger Beep

Some users may find the button press beeps or the 'roger beep' (tone indicating end of transmission) to be loud. These can be disabled:

• To disable button beeps: While the walkie talkie is off, press and hold the DOWN ARROW key and the POWER button simultaneously until it turns on. This setting will save.
• To disable roger beep: While the walkie talkie is off, press and hold the UP ARROW key and the POWER button simultaneously until it turns on. This setting will save.

8.3. Resetting the Walkie Talkie

If you experience persistent issues, you can reset the walkie talkie to its factory default settings (Channel 1, CTCSS 0):

1. Turn off the walkie talkie by pressing and holding the power button.
2. Remove the back clip and battery cover, then remove all batteries.
3. While pressing and holding the POWER button, reinstall the batteries, battery cover, and back clip. You will hear a beep, indicating the walkie talkie has been reset and turned on.

9. Specifications

10. Warranty and Support

For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official Retevis website. Keep your purchase receipt as proof of purchase.