1. Introduction
Thank you for choosing the Motorola GP518 Portable Two-Way Radio. This manual provides essential information for the safe and efficient operation of your device. Please read this manual thoroughly before using the radio to ensure optimal performance and to prevent damage.
The Motorola GP518 is a compact and lightweight two-way radio designed for reliable communication. It features USB fast charging, a portable back clip, sonorous sound quality, and a high-capacity lithium battery for extended standby time.
2. Safety Information
Please observe the following safety precautions to reduce the risk of fire, electric shock, or personal injury:
- Do not operate the radio in explosive atmospheres (e.g., around flammable gas, dust particles, or metallic powders).
- Do not disassemble or modify the radio. Repairs should only be performed by qualified technicians.
- Use only approved batteries and chargers. Improper use may lead to fire, explosion, or injury.
- Keep the radio away from strong magnetic fields.
- Avoid exposing the radio to direct sunlight for prolonged periods or to extreme temperatures.
- Do not immerse the radio in water if it is not specified as waterproof. Note: This model is NOT waterproof/water-resistant.
- Always turn off the radio before cleaning.
3. Package Contents
Your Motorola GP518 package typically includes:
- Motorola GP518 Two-Way Radio Unit(s)
- Rechargeable Lithium Battery (pre-installed or separate)
- Antenna
- USB Charging Cable
- Portable Back Clip
- User Manual

4. Product Overview
Familiarize yourself with the main components and controls of your GP518 radio:

- Antenna: For transmitting and receiving signals.
- CH+ Button: Increases the channel number.
- Power Button (⑁): Press and hold to turn the radio On/Off. Short press may activate other functions.
- CH- Button: Decreases the channel number.
- PTT (Push-To-Talk) Button: (Typically on the side) Press and hold to transmit, release to receive.
- Speaker/Microphone: For audio output and input.
- USB Charging Port: For connecting the USB charging cable.
- Back Clip Slot: For attaching the portable back clip.
5. Setup
5.1 Battery Installation
The GP518 uses a high-capacity 6800mAh lithium battery. Ensure the battery is correctly installed before first use.
- If the battery is separate, align the battery with the battery compartment on the back of the radio.
- Gently push the battery into place until it clicks securely.
- To remove, follow the reverse procedure, usually by releasing a latch.

5.2 Charging the Battery
Before initial use, fully charge the battery. The GP518 supports convenient USB fast charging.
- Connect the USB charging cable to the radio's USB port.
- Connect the other end of the USB cable to a compatible power source (e.g., computer, mobile power supply, USB wall adapter).
- The charging indicator (if present) will show the charging status. Refer to the radio's display or LED indicator for details.
- Once fully charged, disconnect the charging cable.

5.3 Attaching the Antenna
Screw the antenna clockwise into the connector on the top of the radio until it is finger-tight. Do not overtighten.
5.4 Attaching the Portable Back Clip
Slide the back clip into the designated slot on the rear of the radio until it locks into place. This allows for easy carrying on a belt or pocket.

6. Operating Instructions
6.1 Power On/Off
Press and hold the Power (⑁) button located on the front panel until you hear a tone or see an indicator light up/turn off.
6.2 Selecting a Channel
Use the CH+ and CH- buttons on the front panel to select your desired communication channel. Ensure all radios in your group are on the same channel.
6.3 Transmitting and Receiving
- To transmit, press and hold the PTT (Push-To-Talk) button (typically on the left side of the radio). Speak clearly into the microphone.
- Release the PTT button to stop transmitting and return to receive mode.
- When receiving, the radio will automatically output audio through the speaker.
6.4 Volume Adjustment
The GP518 does not feature dedicated volume buttons. Volume is typically adjusted automatically or through pre-set levels. Ensure the radio is held at an appropriate distance for clear audio.
7. Maintenance
- Cleaning: Wipe the radio with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Battery Care: To prolong battery life, avoid overcharging and fully discharging the battery regularly. Store the radio and battery in a cool, dry place when not in use for extended periods.
- Antenna: Do not bend or twist the antenna excessively, as this can damage it and affect radio performance.
- Storage: Store the radio in a dry, dust-free environment.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on | Battery is low or not installed correctly. | Charge the battery fully. Ensure the battery is securely installed. |
| Cannot transmit or receive | Incorrect channel selected. Out of range. Antenna loose or damaged. | Verify both radios are on the same channel. Move closer to the other radio. Check antenna connection. |
| Poor audio quality | Weak signal. Obstructions. Microphone/speaker blocked. | Move to an open area. Ensure microphone and speaker are clear. |
| Short communication range | Environmental factors (buildings, terrain). Low battery. | Move to higher ground or an open area. Ensure battery is fully charged. |
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | GP518 (also referred to as pt858) |
| Walkie Talkie Type | Portable |
| Frequency Range | UHF 400-470MHz |
| Memory Channels | 16 |
| Output Power | 3W-5W |
| Battery Capacity | 6800mAh Lithium Battery |
| Standby Time | Up to 48 hours |
| Charging | USB Fast Charging |
| Dimensions (W x H x D) | 6cm x 13cm x 2.1cm (approx. 90*53*19mm) |
| Weight | 94g (including battery and antenna) |
| Material | Plastic |
| Waterproof / Water-Resistant | No |
| Display | No |
| Maximum Range | 3km-5km (varies by environment) |
| Certification | CE |


10. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the point of purchase. Keep your purchase receipt as proof of purchase.





