1. Introduction
Thank you for choosing the XF-888S Two-way Radio. This manual provides essential information for the safe and efficient operation of your radio. Please read this manual thoroughly before use to ensure proper functionality and to maximize your communication experience. The XF-888S is a robust and reliable UHF radio designed for various applications, featuring a powerful 8W output and a 5200mAh battery for extended use.
2. Package Contents
Please check the box for the following items:
- 1 × XF-888S Radio Unit
- 1 × 3.7V 1500mAh Li-ion Battery
- 1 × Antenna
- 1 × Belt Clip
- 1 × User Manual (this document)
- 1 × Charger (USB Plug)
- 1 × Hand Strap
- 1 × Earphone
3. Product Overview
Familiarize yourself with the parts and controls of your XF-888S radio:
- Antenna: For transmitting and receiving signals.
- Power / Volume Knob: Turns the radio on/off and adjusts the volume.
- Channel Knob: Selects one of the 16 available channels.
- PTT Transmit Key (Push-to-Talk): Press and hold to transmit, release to receive.
- Mute Key: Mutes the audio output.
- Write Frequency Editing: (Functionality typically requires PC programming, see section 5.6)
- Microphone: For voice input during transmission.
- Speaker: For audio output.
- Type-C Charging Port: For connecting the charger.
4. Setup
4.1. Charging the Battery
- Connect the USB charger to a power source.
- Connect the Type-C end of the charger to the charging port on the radio.
- The radio's indicator light will show charging status (e.g., red for charging, green for fully charged).
- Charge the battery fully before first use (approximately 8 hours for a full charge).
4.2. Attaching the Antenna
Screw the antenna clockwise into the connector on the top of the radio until it is firmly seated.
4.3. Attaching the Belt Clip
Align the belt clip with the screw holes on the back of the radio and secure it with the provided screws.
5. Operating Instructions
5.1. Power On/Off and Volume Control
Rotate the Power/Volume knob clockwise to turn the radio ON. Continue rotating to increase the volume. Rotate counter-clockwise to decrease the volume and turn the radio OFF.
5.2. Channel Selection
Rotate the Channel knob to select the desired communication channel (1-16).
5.3. Transmitting and Receiving
- To Transmit: Press and hold the PTT (Push-to-Talk) key. Speak clearly into the microphone. Release the PTT key to stop transmitting.
- To Receive: Ensure the PTT key is not pressed. The radio will automatically receive signals on the selected channel.
5.4. Decoding Function
This feature allows the radio to decode frequencies from another walkie-talkie.
- Switch the radio to Channel 1.
- Long press the PTT (Transmit) key and Side Key 1 simultaneously to power on the radio.
- The green light will flash, indicating the radio is in decoding mode.
- When the radio under test transmits, your XF-888S will automatically decode the frequency and move to the next channel.
- After decoding all 16 channels, press the PTT key to save the decoded frequencies.
5.5. Wireless Transmission Operation Mode
This mode allows for wireless programming/transmission of settings.
- Switch the radio to Channel 2.
- Long press the PTT key and Side Key 1 simultaneously to start the transmission mode. The red light will illuminate.
- To exit this mode, long press the PTT key on the wireless transmitting machine.
5.6. Wireless Receiving Operation Mode
This mode allows the radio to receive settings wirelessly.
- Switch the radio to Channel 3.
- Long press the PTT key and Side Key 1 simultaneously to power on and enter the receiving mode.
- The green light will turn on, and a beep will sound when receiving is completed.
5.7. Manual Language Switching (Chinese/English)
- Switch the radio to Channel 15.
- Turn the radio OFF.
- Long press the PTT (Transmit) button and Side Button 1 simultaneously to start the radio. The language will switch.
5.8. Other Features
- 50 CTCSS / 105 CDCSS: Provides enhanced privacy and reduces interference.
- VOX Function: Voice-activated transmission, allowing hands-free operation.
- Voice Prompt: Audible alerts for channel changes and other functions.
- PC Programming: Allows advanced customization of radio settings via computer (software and cable sold separately).
- Emergency Alarm: Activates an alarm signal in emergency situations.
- Intelligent Charging: Optimizes battery charging for longevity.
- Battery Save: Extends battery life by reducing power consumption during idle periods.
- Low Voltage Alert: Notifies the user when the battery level is low.
- Time-out Timer (TOT): Prevents accidental long transmissions by limiting transmission time.
- Torch Light: Built-in LED light for illumination.
- No Scanning Functionality.
- No FM Radio Functionality.
6. Maintenance
6.1. Cleaning
Clean the radio's surface with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the charging port is free of dust and debris.
6.2. Battery Care
- Always use the specified charger.
- Do not short-circuit the battery terminals.
- Do not expose the battery to fire or extreme heat.
- If the radio will not be used for an extended period, remove the battery and store it in a cool, dry place.
6.3. Antenna Care
Avoid bending or twisting the antenna excessively, as this can damage it and affect radio performance.
7. 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 attached. |
| No sound or low volume | Volume is too low or muted. | Adjust the volume knob. Check if the Mute key is activated. |
| Cannot transmit or receive | Incorrect channel selected. Antenna not properly attached. Battery low. | Verify both radios are on the same channel. Ensure antenna is secure. Charge battery. |
| Short communication range | Obstructions (buildings, terrain). Low battery. | Move to an open area. Ensure battery is fully charged. |
8. Specifications
8.1. General
- Frequency Range: 400-470MHz
- Channel Capacity: 16
- Operated Voltage: 3.7V
- Battery Capacity: 5200mAh Li-ion
- Battery Life (5-5-90 duty cycle): About 8 hours
- Frequency Stability: ± 2.5ppm
- Operated Temperature: -20°C to +60°C
- Antenna Impedance: 50 Ω
- Dimensions: 97.36mm × 57.2mm × 29.3mm
- Material: Plastic
- Waterproof / Water-Resistant: IP65
- Maximum Range: 5km-10km
8.2. Transmitter
- RF Power Output: ≤5W (Note: Product title states 8W, but specifications indicate ≤5W. Please refer to actual product labeling for precise output.)
- Spurious Emission: 65dB
- Audio Distortion: ≤5%
- Transmitting Current: 1.2A
8.3. Receiver
- Sensitivity (12dB SINAD): ≥0.2μv
- Inter-modulation: ≥65dB
- Adjacent Channel Selectivity: ≥60dB
- Spurious Response: ≥60dB
- Audio Distortion: ≤5%
9. User Tips
- For optimal range, ensure you have a clear line of sight between radios. Obstacles like buildings and dense foliage can significantly reduce communication distance.
- Always keep your battery charged, especially before extended use. The low voltage alert will notify you when charging is needed.
- Consider using the VOX function for hands-free communication when appropriate, but be mindful of background noise that might trigger transmission.
- If you experience interference, try switching to a different channel. The CTCSS/CDCSS tones can also help filter out unwanted signals.
- For advanced customization, explore PC programming options. This allows fine-tuning of frequencies, tones, and other operational parameters.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's specific policies or contact the point of purchase. Keep your purchase receipt as proof of purchase.
