1. Introduction
The HIROYASU HI-UV850Pro is a versatile multi-band handheld ham walkie-talkie designed for amateur radio enthusiasts and outdoor use. It features a robust 10W output power, a full-color display, and supports various modulation modes including FM, AM, and SSB. Advanced functionalities like Bluetooth programming, GPS positioning, APRS, and a built-in spectrum analyzer enhance its utility for diverse communication needs.
2. Package Contents
Ensure all items are present upon unboxing:
- 1 Ă— HIROYASU HI-UV850Pro Radio Body
- 1 Ă— 7.4V 2600mAh Li-ion Type-C Rechargeable Battery Pack
- 1 Ă— SMA-Female FM/136-174/400-470MHz High Gain Antenna
- 1 Ă— Desktop Charger
- 1 Ă— Type-C Charging Cable
- 1 Ă— AC Adapter
- 1 Ă— Belt Clip
- 1 Ă— Hand strap
- 1 Ă— English User Manual
- 1 Ă— USB Programming Cable (Optional)
- 1 Ă— Speaker Microphone (Optional)
3. Product Overview
Familiarize yourself with the main components of your HI-UV850Pro walkie-talkie.
- **Channel Knob:** Used to select channels.
- **Power Switch/Volume Knob:** Turns the radio on/off and adjusts volume.
- **Indicator Light:** Provides status indications (e.g., transmitting, receiving, charging).
- **Display Screen:** 2.4" 240x320 resolution full-color display for information and menu navigation.
- **PPT A/B/C Buttons:** Programmable Push-To-Talk buttons for different bands or functions.
- **Accessory Interface:** For connecting external accessories like speaker microphones.
- **Interface Cover Screw:** Secures the accessory interface cover.
- **Side Key 2:** Programmable side key.
- **Speaker:** Built-in 40mm diameter, 16Ω, 1W loudspeaker.
- **Function Keypad:** For menu navigation and function selection.
- **Numeric Keypad:** For direct frequency input and DTMF signaling.
4. Setup
4.1 Battery Installation and Charging
- Attach the battery pack to the back of the radio, ensuring it clicks securely into place.
- Connect the AC adapter to the desktop charger.
- Place the radio (with battery) into the desktop charger. The indicator light on the charger will show charging status.
- Alternatively, use the Type-C charging cable to directly charge the battery pack.
4.2 Antenna Attachment
- Carefully screw the SMA-Female antenna onto the antenna connector at the top of the radio until it is finger-tight. Do not overtighten.
4.3 Initial Power On
- Rotate the Power Switch/Volume Knob clockwise to turn on the radio.
- The display will show the HIROYASU logo and then the main operating interface.
5. Operating Instructions
5.1 Basic Operation
- **Volume Adjustment:** Rotate the Power Switch/Volume Knob to adjust the audio level.
- **Channel Selection:** Use the Channel Knob or the up/down arrow keys on the keypad to navigate through channels.
- **Frequency Input:** Use the numeric keypad to directly enter frequencies.
- **PTT (Push-To-Talk):** Press and hold the designated PTT button (A, B, or C) to transmit, and release to receive.
5.2 Modulation Modes (FM/AM/SSB)
The HI-UV850Pro supports multiple modulation modes for various frequency bands:
- **FM (Frequency Modulation):** For 64-108MHz (broadcast FM) and VHF/UHF bands.
- **AM (Amplitude Modulation):** For 153-279KHz (LW), 520-1710KHz (MW), and 2300-26100KHz (SW).
- **SSB (Single Sideband):** For 150-30000KHz (Shortwave).
To change modulation mode, navigate through the radio's menu using the function keypad. Refer to the video for a demonstration of menu navigation.
5.3 Advanced Features
- **Bluetooth Programming:** Use the mobile app to program channels and settings wirelessly.
Figure 6: Mobile App Programming Interface - **GPS Positioning & APRS:** The radio supports GPS for location tracking and APRS (Automatic Packet Reporting System) for real-time position reporting.
Figure 7: GPS and APRS Functionality - **Cross Band Repeater:** Extend communication range by using the radio as a cross-band repeater.
Figure 8: Cross Band Repeater Setup - **Frequency Sweep:** Quickly copy a channel from another radio.
Figure 9: Frequency Sweep Feature - **Spectrum Analyzer:** Real-time signal analysis to monitor and optimize frequency usage.
Figure 10: Integrated Spectrum Analyzer - **Scramblers:** Utilize 8 groups of scramblers for enhanced privacy.
Figure 11: Scrambler Functionality - **NOAA Weather Channels:** Access 10 NOAA weather forecast channels.
Figure 12: NOAA Weather Channels - **Customizable Keys:** Self-define keys for quick access to frequently used menu options.
Figure 13: Customizable Key Functions
6. Maintenance
- **Cleaning:** Use a soft, damp cloth to clean the radio's exterior. Avoid harsh chemicals or abrasive cleaners.
- **Battery Care:**
- Charge the battery fully before first use.
- Do not expose the battery to extreme temperatures.
- If the radio will not be used for an extended period, remove the battery.
- **Antenna Care:** Ensure the antenna is securely attached but not overtightened. Avoid bending or stressing the antenna.
- **Storage:** Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on. | Low or dead battery; incorrect battery installation. | Charge the battery. Ensure the battery is correctly installed. |
| Cannot transmit or receive. | Incorrect frequency/channel; antenna not connected; low battery; squelch level too high. | Verify frequency/channel settings. Check antenna connection. Charge battery. Adjust squelch level. |
| Poor audio quality. | Weak signal; incorrect modulation; low volume; speaker obstruction. | Move closer to the other radio or to a clearer area. Check modulation settings. Adjust volume. Ensure speaker is clear. |
| Bluetooth programming fails. | Bluetooth not enabled on radio/phone; incorrect model selected in app; radio not in programming mode. | Ensure Bluetooth is ON on both devices. Select the correct model (HI-UV850Pro) in the app. Follow app instructions for programming mode. |
| GPS not acquiring signal. | Indoors or obstructed view of sky; GPS function turned off. | Move to an open outdoor area. Ensure GPS is enabled in the radio's settings. |
8. Specifications
| General | |
|---|---|
| Frequency 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 |
| Dimensions | 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 range, ensure the antenna is fully extended and the radio is held vertically during transmission.
- Experiment with the different modulation modes (FM, AM, SSB) to find the best clarity for your specific frequency and conditions.
- Utilize the Bluetooth programming feature with the mobile app for convenient and precise channel management, especially when dealing with a large number of memory channels.
- When using GPS/APRS, ensure you have a clear view of the sky for accurate positioning data.
- The customizable side keys can significantly improve ease of use by assigning frequently accessed functions. Consider assigning common menu items or power levels to these keys.
10. Warranty and Support
This product is manufactured by HIROYASU. For any technical support or warranty inquiries, please contact the seller directly. The product is certified with CE and FCC standards.
- **Free Returns:** Free returns are available within 90 days.
- **Fast Delivery Guarantee:** Includes a $1.00 coupon code if delivery is delayed, and refunds if the package is lost or items are damaged.
- **Security & Privacy:** Your personal details are protected and not shared with third parties without consent.
For further assistance, you may refer to the official store: Global Walkie Talkie Store.
