1. Introduction
The ABBREE AR-771 is a high-gain, tri-band soft whip antenna designed to enhance the performance of your compatible ham radio. Featuring an SMA-Female connector, it supports VHF (136-174MHz), 1.25M (220-225MHz), and UHF (400-520MHz) frequency bands, providing a strong and stable signal for a wide range of communication needs. Its flexible design ensures durability and ease of use.

2. Setup Instructions
- Verify Compatibility: Ensure your radio has an SMA-Male connector to match the antenna's SMA-Female connector. The AR-771 is compatible with many tri-band radios, including models like Baofeng M-5R, M-13 PRO, UV-5RH, UV-5RH PRO MAX, UV-5RM, UV-K5 PRO, UV-17M, UV-17 PRO, UV-17 PRO GPS, UV-18 PRO, UV-21 PRO, UV-25, UV-9S/S9 BF-R3, UV-82T, UV-5R Ⅲ, UV-82 Ⅲ, BF-A58S, ABBREE AR-F3, Baofeng X Radioddity UV-5RX3, UV-82X3, BTECH UV-5X3.
- Attach Antenna: Carefully screw the SMA-Female connector of the AR-771 antenna onto the SMA-Male connector of your radio. Turn clockwise until it is finger-tight. Do not overtighten, as this can damage the connectors.
- Position Antenna: For optimal performance, ensure the antenna is positioned vertically and unobstructed.

3. Operating Instructions
Once the AR-771 antenna is securely attached to your compatible radio, it operates passively to receive and transmit signals across its supported frequency bands. No additional configuration is typically required for the antenna itself. Ensure your radio is correctly configured for the desired frequency band (VHF, 1.25M, or UHF) to utilize the antenna's full capabilities.
- VHF Band: 136-174MHz
- 1.25M Band: 220-225MHz
- UHF Band: 400-520MHz
4. Maintenance
To ensure the longevity and optimal performance of your AR-771 antenna, follow these simple maintenance guidelines:
- Cleaning: Wipe the antenna periodically with a soft, damp cloth to remove dust and dirt. Avoid using harsh chemicals or abrasive cleaners.
- Handling: While the antenna is designed to be flexible, avoid excessive bending or sharp kinks, especially near the connector base, to prevent internal damage.
- Storage: When not in use, store the antenna in a clean, dry place away from extreme temperatures.
- Connection Check: Periodically check that the antenna connection to your radio remains secure.

5. Troubleshooting
- Poor Signal Reception/Transmission:
- Ensure the antenna is securely connected to the radio.
- Verify that your radio is set to the correct frequency band (VHF, 1.25M, or UHF) within the antenna's supported range.
- Check for any obstructions between your radio and the signal source/destination.
- Confirm that your radio model is listed as compatible with the AR-771 antenna. Incompatible radios may not perform optimally.
- Antenna Not Fitting Radio:
- The AR-771 uses an SMA-Female connector. Ensure your radio has an SMA-Male connector. If not, an adapter may be required, or the antenna is not compatible with your radio's connector type.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | AR-771 Tri Band |
| Brand Name | ABBREE |
| Connector Type | SMA-Female |
| Frequency Range | VHF (136-174MHz), 1.25M (220-225MHz), UHF (400-520MHz) |
| Gain | 2.5dBi |
| Max. Power | 20 Watts |
| Voltage Standing Wave Ratio (VSWR) | <1.5 |
| Impedance | 50 Ohm |
| Antenna Length | 38cm / 15.1 inches |
| Style | Soft Whip Antenna |

7. User Tips
- For best performance, always ensure the antenna is fully extended and positioned vertically when operating your radio.
- Avoid operating your radio with a damaged antenna, as this can potentially harm the radio's transmitter.
- Consider carrying a spare antenna, especially for outdoor activities, due to the flexible nature of whip antennas.
8. Warranty and Support
This ABBREE AR-771 Tri Band Antenna is provided as a new item. For any compatibility concerns or issues not covered in this manual, please contact the seller or manufacturer directly. When contacting support, please provide your radio's model number for accurate assistance.





