1. Introducció
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. Producte acabatview
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 Característiques clau
- Millora del senyal: Significantly extends the reception range of your radio devices.
- Alta compatibilitat: Equipped with an SMA-Female connector, compatible with a wide range of radios including Baofeng, Kenwood, Wouxun, and others.
- Portabilitat: Unique foldable design allows for compact storage and easy transport, fitting into small bags or pockets.
- Construcció duradora: Made from non-deformable rubber materials and high-gain antenna heads for stable, long-lasting performance.
- Funcionament de doble banda: Supports both VHF (134-176 MHz) and UHF (400-520 MHz) frequencies.
2.2 Contingut del paquet
En obrir el paquet, comproveu que tots els components hi són presents i en bon estat:
- 1 x Radtel RHD-771-3 Foldable Tactical Antenna
- 1 x Antenna Storage Pouch (orange)
- 1 corretges de velcro
- 1 x rentadora de goma

Figure 1: Radtel RHD-771-3 Antenna and Accessories
3. Especificacions
| Paràmetre | Valor |
|---|---|
| Número de model | RHD-771-3 |
| Banda | Dual-Band VHF / UHF |
| Interval de freqüència | 144/430 MHz (134-176 MHz VHF, 400-520 MHz UHF) |
| Tipus d'antena | SMA-Female, Soft Antenna |
| Guanyar | 2.15 dB |
| Potència màxima | 12 W |
| VSWR | Menys de 1.5 |
| Impedància | 50 ohms |
| Longitud | 46 cm (aproximadament 18 polzades) |
| Folded Length (3-fold) | Aprox. 5.9 polzades |
| Folded Length (half-fold) | Aprox. 9.25 polzades |
| Pes | 80 grams |
4. Compatibilitat
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. Configuració i instal·lació
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. Instruccions de funcionament
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:
- Extensió completa: 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. Manteniment i cura
To ensure the longevity and optimal performance of your Radtel RHD-771-3 antenna, follow these maintenance guidelines:
- Neteja: Netegeu l'antena amb un drap suauamp drap per eliminar la pols i la brutícia. No utilitzeu productes químics agressius ni netejadors abrasius.
- Emmagatzematge: When not in use, store the antenna in its folded configuration within the provided storage pouch to protect it from damage.
- Cura del connector: Keep the SMA-Female connector clean and dry. Avoid exposing it to excessive moisture or corrosive substances.
- Manipulació: While the antenna is flexible, avoid extreme bending or sharp creases that could damage the internal wiring.
8. Solució De Problemes
If you experience issues with your Radtel RHD-771-3 antenna, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| Recepció/transmissió deficient del senyal | 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. Garantia i Suport
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 weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
For direct support, you may visit the Radtel store on Amazon: Radtel Store





