1. Introduction
This manual provides detailed instructions for the proper setup, operation, maintenance, and troubleshooting of your Retevis RA79 Ham Radio. Please read this manual thoroughly before using the device to ensure optimal performance and safety.
The Retevis RA79 is a versatile handheld ham radio designed for reliable communication. Key features include multi-band receiving capabilities, NOAA weather alerts, USB-C charging, and an emergency alarm function.
2. Package Contents
Before proceeding with setup, please verify that all items listed below are present in your package:
- 2 x RA79 Radio Body
- 2 x Antenna
- 2 x 1400mAh Lithium-Ion Battery
- 2 x Belt Clip
- 2 x Hand Strap
- 2 x USB Desktop Charger
- 1 x USB Charging Cable
- 2 x User Manual
3. Setup Instructions
3.1 Battery Installation
- Align the battery with the back of the radio body.
- Slide the battery upwards until it clicks securely into place.
3.2 Antenna Attachment
- Screw the antenna clockwise onto the connector at the top of the radio until it is finger-tight. Do not overtighten.
3.3 Charging the Battery
The RA79 radio uses a 1400mAh rechargeable Li-ion battery. It can be charged using the included USB desktop charger or directly via the USB-C port on the radio.
- Using the Desktop Charger: Place the radio (with battery installed) into the desktop charger. Connect the USB charging cable to the desktop charger and a compatible USB power source (e.g., USB adapter, power bank, PC). The indicator light on the charger will show charging status.
- Direct USB-C Charging: Connect the USB-C charging cable directly to the USB-C port on the side of the radio and to a compatible USB power source.
3.4 Initial Power On
- Rotate the power/volume knob clockwise to turn on the radio.
- Adjust the knob to set the desired volume level.
4. Operating Instructions
4.1 Basic Controls
- Power/Volume Knob: Rotate to turn on/off and adjust volume.
- PTT (Push-to-Talk) Button: Press and hold to transmit, release to receive. Located on the left side of the radio.
- Menu Button: Accesses the radio's menu system.
- Up/Down Arrows: Navigate menu options or adjust frequencies.
- Keypad: For direct frequency entry and accessing specific functions.
4.2 Frequency and Channel Modes
The RA79 supports both VFO (Variable Frequency Oscillator) mode for direct frequency input and Channel mode for pre-programmed frequencies.
- VFO Mode: Allows manual entry and editing of frequencies. Press the VFO/MR button (often labeled 3) to switch to VFO mode. Use the keypad to enter the desired frequency.
- Channel Mode: Accesses pre-stored channels. Press the VFO/MR button to switch to Channel mode. Use the Up/Down arrows or keypad to select a channel.
4.3 Programming
The RA79 can be programmed via its keypad or using CHIRP software.
- Keypad Programming: Frequencies and settings can be entered directly using the radio's keypad. Refer to the detailed menu structure in the full user manual for specific programming steps.
- CHIRP Software: For advanced programming and channel management, the RA79 is compatible with CHIRP software (Windows XP/7/8/10/11). A programming cable (not always included, check package contents) is required to connect the radio to a computer.
4.4 Multi-Band Receiving
The RA79 supports receiving across multiple bands, including V/UHF, AM, and FM, as well as the Air Band.
4.5 NOAA Weather Alert
The radio features 10 NOAA weather channels, providing access to weather alerts and forecasts. This function is particularly useful for outdoor activities.
4.6 Emergency Alarm
The RA79 includes an emergency alarm function to signal for assistance when needed. Consult the full user manual for instructions on activating and deactivating this feature.
4.7 Frequency Capture (Fast Pair)
The radio can quickly scan and capture frequencies from other two-way radios, displaying them on the LCD for easy pairing.
5. Maintenance
5.1 Cleaning the Device
- Wipe the radio's surface with a soft, damp cloth.
- Do not use harsh chemicals or abrasive cleaners.
- Ensure the radio is powered off and disconnected from any charging source before cleaning.
5.2 Battery Care and Storage
- Avoid fully discharging the battery frequently to prolong its lifespan.
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for extended periods, charge the battery to approximately 50% capacity.
5.3 Antenna Care
- Handle the antenna carefully to prevent bending or damage.
- Ensure the antenna is securely attached during operation.
6. Troubleshooting
If you encounter issues with your Retevis RA79 radio, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on | Low or depleted battery; improperly installed battery | Charge the battery; ensure battery is correctly installed. |
| No signal or poor reception | Antenna not attached; out of range; incorrect frequency/channel | Attach antenna securely; move closer to other radios/repeater; verify frequency/channel settings. |
| Cannot transmit | Incorrect frequency/offset; PTT button not pressed correctly; battery low | Check frequency and offset settings; ensure PTT is fully pressed; charge battery. |
| Distorted audio | Volume too high/low; squelch level incorrect; interference | Adjust volume; adjust squelch level; move away from sources of interference. |
If the problem persists after attempting these solutions, please contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | RA79 |
| Item Weight | 7.9 ounces |
| Product Dimensions | 1.48 x 2.36 x 4.53 inches |
| Battery Type | 2 Lithium Ion batteries (1400mAh each) |
| Display Type | LCD |
| Number of Channels | 200 |
| Frequency Range | Dual Band |
| Talking Range Maximum | 5 Mile (under optimal conditions) |
| Voltage | 7.4 Volts (DC) |
| Water Resistance Level | Not Water Resistant |
| Special Features | Emergency Alarm, Keypad Lock |
8. Warranty Information
Retevis provides a 2-year warranty for the radio body and a 1-year warranty for accessories. A 30-day no-reason return policy is also offered. For service beyond the warranty period, maintenance services are available, with buyers responsible for associated costs.
To initiate a warranty claim or for service inquiries, please contact Retevis customer support via Amazon. Responses are typically provided within 12 hours.
9. Customer Support
For any questions, technical assistance, or support regarding your Retevis RA79 Ham Radio, please contact Retevis Direct through the Amazon platform. Ensure you provide your product details and a clear description of your inquiry for efficient assistance.
