1. Introduction
This user manual provides comprehensive instructions for the Radtel RHD-771-3 Foldable Tactical Antenna. Designed to enhance the range and performance of your portable walkie-talkies, this antenna offers superior signal reception and transmission capabilities. Please read this manual thoroughly before use to ensure optimal performance and longevity of your antenna.
2. Product Overview
The Radtel RHD-771-3 is a high-gain, dual-band VHF/UHF antenna featuring a flexible and foldable design for enhanced portability and tactical use. Its SMA-Female connector ensures broad compatibility with various walkie-talkie models.
2.1 Key Features
- Signal Enhancement: Significantly extends the reception range of your radio devices.
- High Compatibility: Equipped with an SMA-Female connector, compatible with a wide range of radios including Baofeng, Kenwood, Wouxun, and others.
- Portability: Unique foldable design allows for compact storage and easy transport, fitting into small bags or pockets.
- Durable Construction: Made from non-deformable rubber materials and high-gain antenna heads for stable, long-lasting performance.
- Dual-Band Operation: Supports both VHF (134-176 MHz) and UHF (400-520 MHz) frequencies.
2.2 Package Contents
Upon opening the package, verify that all components are present and in good condition:
- 1 x Radtel RHD-771-3 Foldable Tactical Antenna
- 1 x Antenna Storage Pouch (orange)
- 1 x Velcro Strap
- 1 x Rubber Washer
Figure 1: Radtel RHD-771-3 Antenna and Accessories
3. Specifications
| Parameter | Value |
|---|---|
| Model Number | RHD-771-3 |
| Band | Dual-Band VHF / UHF |
| Frequency Range | 144/430 MHz (134-176 MHz VHF, 400-520 MHz UHF) |
| Antenna Type | SMA-Female, Soft Antenna |
| Gain | 2.15 dB |
| Maximum Power | 12 W |
| VSWR | Less than 1.5 |
| Impedance | 50 Ohm |
| Length | 46 cm (approx. 18 inches) |
| Folded Length (3-fold) | Approx. 5.9 inches |
| Folded Length (half-fold) | Approx. 9.25 inches |
| Weight | 80 grams |
4. Compatibility
The Radtel RHD-771-3 antenna is compatible with a wide range of walkie-talkies equipped with an SMA-Female antenna connector. This includes, but is not limited to, the following models:
- Baofeng: BF-888S, UV-5R, UV-5R Plus, UV-5RA, UV-5RB, UV-5RC, UV-5RD, UV-5RE, UV-5RE plus, UV-5RTP, BF-666s, BF-777s, UV-6, UV-8, BF-F8+, UV-B6, UV-B5, BF-K5, BF-A5, BF-A58, UV-A52, UV-82.
- Retevis: H777, RT7, RT5, RT5R, RT5RV, RT6, RT21, RT23, RT25, RT29, RT84, RT80, RT53.
- HYT: TC-268, TC-268S, TC-368, TC-368S, TC-370S, TC-500, TC-500S.
- LINTON: LT-3288, LT-6288, LT-3188, LT-2188, LT-3260, LT-3268, LT-6188.
- WOUXUN: KG-UVD1P, KG-UV6D, KG-689, KG-689Plus, KG-669, KG-669Plus, KG-659, KG-699E, KG-859, KG-879, KG-929.
- PUXING: PX-777, PX-777Plus, PX-666, PX-888, PX-888K.
- QUANSHENG: TG-K4AT, TG-K100, TG-K200, TG-K58Mini, TG-6A, TG-5A, TG-620, TG-5A Plus, TG-K4AT(UV), TG-360.
- Kenwood: TK-360, TK-370, TK-370G, TK-372, TK-372G, TK-3100, TK-3140, TK-3160, TK-3170, TK-3180, TK-3200, TK-3202, TK-3207.
If your radio model is not listed, please check its antenna connector type. If it is an SMA-Female connector, this antenna should be compatible.
5. Setup and Installation
Installing the Radtel RHD-771-3 antenna is a straightforward process. Follow these steps to properly attach the antenna to your compatible walkie-talkie:
- Prepare Your Radio: Ensure your walkie-talkie is turned off before attaching or detaching any antenna.
- Remove Existing Antenna (if applicable): Gently unscrew the existing antenna from your radio by turning it counter-clockwise.
- Attach the Radtel Antenna: Align the SMA-Female connector of the Radtel RHD-771-3 antenna with the SMA-Male connector on your walkie-talkie. Carefully screw the antenna onto the radio by turning it clockwise until it is finger-tight. Do not overtighten, as this can damage the connector.
- Secure the Antenna (Optional): Use the provided velcro strap to secure the folded antenna to the radio body if desired, especially when in a compact configuration.
Figure 2: Antenna attached to a radio in extended and folded configurations.
Figure 3: Radtel RHD-771-3 Antenna in its full extended length.
6. Operating Instructions
Once the antenna is securely attached, you can begin using your radio. The flexible and foldable design allows for versatile operation.
6.1 Folding and Unfolding the Antenna
The Radtel RHD-771-3 antenna can be folded into multiple configurations for portability or specific operational needs:
- Full Extension: For maximum range and signal clarity, use the antenna in its fully extended position (approx. 18 inches).
- Half-Fold: The antenna can be folded once to approximately 9.25 inches, offering a balance between portability and performance.
- Three-Fold: For ultimate compactness, the antenna can be folded twice to approximately 5.9 inches, ideal for storage or carrying in a pocket.
Figure 4: Antenna folding configurations.
Figure 5: Demonstrating the antenna's flexibility.
6.2 Enhancing Communication Range
To maximize the benefits of this high-gain antenna:
- Always use the antenna in its fully extended position when optimal range is required.
- Ensure the antenna is clear of obstructions for best signal propagation.
- Consider your environment; open areas provide better range than dense urban or forested areas.
Figure 6: Optimal use in open environments.
7. Maintenance and Care
To ensure the longevity and optimal performance of your Radtel RHD-771-3 antenna, follow these maintenance guidelines:
- Cleaning: Wipe the antenna with a soft, damp cloth to remove dust and dirt. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, store the antenna in its folded configuration within the provided storage pouch to protect it from damage.
- Connector Care: Keep the SMA-Female connector clean and dry. Avoid exposing it to excessive moisture or corrosive substances.
- Handling: While the antenna is flexible, avoid extreme bending or sharp creases that could damage the internal wiring.
8. Troubleshooting
If you experience issues with your Radtel RHD-771-3 antenna, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Poor signal reception/transmission | Antenna not fully extended; loose connection; environmental interference; incorrect frequency settings on radio. | Ensure antenna is fully extended. Check that the antenna is securely screwed onto the radio. Move to an area with less interference. Verify radio frequency settings. |
| Antenna does not fit radio | Incorrect connector type. | Verify your radio has an SMA-Female connector. This antenna is SMA-Female. If your radio has an SMA-Male connector, you may need an adapter (not included). |
| Antenna appears damaged | Physical stress or impact. | Inspect for visible damage. If severely damaged, replace the antenna. Avoid excessive force when folding or bending. |
If the problem persists after attempting these solutions, please contact Radtel customer support for further assistance.
9. Warranty and Support
Radtel products are manufactured to high-quality standards. For information regarding warranty coverage and customer support, please refer to the warranty card included with your purchase or visit the official Radtel website. Keep your proof of purchase for warranty claims.
For direct support, you may visit the Radtel store on Amazon: Radtel Store
