1. Introduction
Thank you for choosing the Hiroyasu HI-UV850Pro Multi-Band Handheld Radio. This device is a versatile communication tool designed for amateur radio enthusiasts and professionals, offering a wide range of features including multi-band reception, high output power, GPS, APRS, and Bluetooth programming. This manual provides essential information for the safe and efficient operation of your radio.
2. Package Contents
Please check the box for the following items:
- 1 × HIROYASU HI-UV850Pro Radio Body
- 1 × 7.4V 2600mAh Li-ion Type-C Rechargeable Battery Pack
- 1 × SMA-Female FM/136-174/400-470MHz High Gain Antenna
- 1 × Desktop Charger
- 1 × Type-C Charging Cable
- 1 × AC Adapter
- 1 × Belt Clip
- 1 × Hand Strap
- 1 × English User Manual
3. Product Overview
Familiarize yourself with the main components of your HI-UV850Pro radio:
- **Channel Knob**: Used to select channels or navigate menus.
- **Power Switch/Volume Knob**: Turns the radio on/off and adjusts volume.
- **Indicator Light**: Displays radio status (e.g., transmitting, receiving, charging).
- **Antenna**: Connects for signal transmission and reception.
- **Display Screen**: 2.4-inch 240x320 resolution full-color display for information and menu navigation.
- **Accessory Interface**: For connecting external accessories.
- **Interface Cover Screw**: Secures the accessory interface cover.
- **PTT A/B/C Buttons**: Programmable Push-To-Talk buttons.
- **MIC**: Microphone for voice input.
- **Side Key 2**: Programmable side key.
- **Speaker**: Built-in 40mm diameter, 16 Ohm, 1W loudspeaker for audio output.
- **Function Keypad**: Navigation and function keys.
- **Numeric Keypad**: For direct frequency input and menu selection.
4. Setup
4.1. Battery Installation
- Ensure the radio is powered off.
- Align the 7.4V 2600mAh Li-ion battery pack with the battery compartment on the back of the radio.
- Gently push the battery into place until it clicks securely.
4.2. Antenna Attachment
- Locate the SMA-Female antenna connector on the top of the radio.
- Screw the provided SMA-Female FM/136-174/400-470MHz High Gain Antenna clockwise onto the connector until it is finger-tight. Do not overtighten.
4.3. Charging the Battery
Before initial use, fully charge the battery. The radio features a 2600mAh rechargeable Li-ion Type-C battery pack.
- Connect the AC adapter to the desktop charger.
- Place the radio (with battery installed) into the desktop charger.
- Alternatively, you can use the Type-C charging cable to directly charge the radio.
- The indicator light will show charging status (e.g., red for charging, green for fully charged).
5. Operating Instructions
5.1. Power On/Off and Volume
To power on the radio, rotate the Power Switch/Volume Knob clockwise. Continue rotating to increase the volume. To power off, rotate counter-clockwise until it clicks.
5.2. Basic Operation
- Channel Selection: Use the Channel Knob or the up/down arrows on the Function Keypad to navigate through the 990 memory channels (10 zones, 99 channels per zone).
- Frequency Input: Use the Numeric Keypad for direct frequency input in VFO mode.
- PTT Buttons: Press and hold a PTT button to transmit. Release to receive.
5.3. Modulation Modes
The HI-UV850Pro supports multiple modulation types:
- FM (Frequency Modulation): For standard VHF/UHF communication and FM broadcast reception (64-108MHz).
- AM (Amplitude Modulation): For shortwave (SW), medium wave (MW), and long wave (LW) reception (153-279KHz, 520-1710KHz, 2300-26100KHz). Also for aviation band receive (108-136MHz).
- SSB (Single Sideband): For enhanced shortwave reception (150-30000KHz).
- USB/LSB/CW: For advanced amateur radio operations.
5.4. Advanced Features
- 10W Output Power: Selectable High/Middle/Low output power levels.
- Cross Band Repeater: Allows the radio to re-transmit signals received on one band to another, extending communication range.
- GPS Positioning & APRS: Integrated GPS for location tracking and APRS (Automatic Packet Reporting System) for real-time position reporting and messaging.
- Mobile APP Bluetooth Wireless Program: Program your radio channels and settings wirelessly via a mobile application using Bluetooth connectivity.
- Integrated Spectrum Analyzer: Real-time signal analysis helps you monitor and optimize frequency usage efficiently.
- Dynamic Signal Strength Meter Display: Provides visual feedback on signal strength.
- 8 Groups of Scramblers: Enhances privacy during communications.
- Frequency Sweep: Quickly copy a channel from another radio instantly.
- 10 NoAA Weather Forecast Channels: Access to weather information.
- DTMF Signaling: Dual-Tone Multi-Frequency signaling for various control functions.
- VOX (Voice-operated Transmission): Allows hands-free operation.
- SOS Modes: Three modes (On site/Send Sound/Send Code) for emergency signaling.
- Customizable Keys: Self-definition keys for menu quick access.
- Repeater Burst Tone: 1000/1450/1750/2100Hz tones for accessing repeaters.
6. Maintenance
6.1. General Care
- Keep the radio dry. If it gets wet, wipe it immediately.
- Do not expose the radio to extreme temperatures.
- Clean the radio with a soft, damp cloth. Do not use harsh chemicals or solvents.
- Ensure all covers and ports are properly sealed when not in use to prevent dust and moisture ingress.
6.2. Battery Care
- Charge the battery fully before first use.
- Avoid overcharging or completely draining the battery to prolong its lifespan.
- Store the battery in a cool, dry place when not in use for extended periods.
- If the battery is not used for a long time, charge it every three months to maintain performance.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on | Low or dead battery; Incorrect battery installation | Charge the battery; Reinstall the battery correctly. |
| Cannot transmit or receive | Antenna not connected; Incorrect frequency/channel; Low power setting | Attach antenna securely; Verify frequency/channel settings; Increase output power. |
| Poor audio quality | Low signal strength; Incorrect squelch level; Speaker obstruction | Move to an area with better reception; Adjust squelch level; Clear speaker. |
| Bluetooth programming fails | Bluetooth not enabled on radio/phone; App not connected; Incorrect model selected in app | Ensure Bluetooth is ON on both devices; Reconnect via app; Select 'HI-UV850Pro' in the app. |
8. Specifications
| General | |
|---|---|
| Freq Range | 108-136MHz Aviation Band Receive 27MHz Tx/RX FM Modulation 49-53MHz Tx/Rx 136-174MHz Tx/Rx 400-520MHz Tx/Rx SW: 2.3-30MHz Rx MW: 520-1710KHz Rx LW: 153-279KHz Rx |
| Channel Capacity | 990 Memory Channels (10 zones, 99 channels per zone) |
| Channel Spacing (W/N) | Analog: 25kHz/12.5kHz, Digital: 12.5K |
| Voltage | 7.4V DC |
| Working Mode | Same Frequency simplex, different frequency simplex |
| Antenna | Removable Antenna |
| Frequency Stability | ±2.5ppm |
| Working Temperature | -20°C ~ 60°C |
| Dimension | 160*65*45mm (Antenna Not included) |
| Weight | About 400g (Battery, Antenna, Clip included) |
| Transmitting | |
| Power | ≤10W |
| Modulation Mode | F3E |
| Maximum Deviation (W/N) | ≤5KHz/≤2.5KHz |
| SNR (W/N) | -45dB/-40dB |
| Tx Current | ≤3000mA |
| Receiving | |
| Sensitivity (W/N) | 0.22uV/0.25uV 12dB SINAD |
| Inter Modulation (W/N) | 65dB/60dB |
| Audio Distortion | <5% |
| Audio Output Power | ≤1W (16ohm) |
| RX Current | ≤350mA |
| Standby Current | ≤100mA |
Note: The above parameters are subject to change due to technical improvement without prior notice or liability.
9. User Tips
- For optimal performance, ensure your antenna is always properly connected before transmitting.
- Experiment with the different modulation modes (FM, AM, SSB) to find the best reception for various bands.
- Utilize the mobile app for programming complex channel configurations, as it can be more intuitive than manual input.
- When using GPS and APRS, ensure you have a clear line of sight to the sky for accurate positioning.
- The frequency sweep function is excellent for quickly identifying active frequencies in a new area.
10. Warranty and Support
Your Hiroyasu HI-UV850Pro radio comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support, troubleshooting assistance, or service inquiries, please contact your retailer or the official Hiroyasu customer service.