Retevis RHD771 Dual‑band SMA‑M antenna 1 pc 📻
Description:
This dual band antenna for handheld radios improves reception on VHF and UHF bands, helping extend the usable range of compatible walkie talkies for outdoor activities and amateur use. It combines modest gain with a compact length so it is easy to carry when hiking or during field operations.
Key Points
The antenna covers 136-174 MHz and 400-470 MHz, making it suitable for common two-way radio bands and emergency channels. Construction uses ABS with a heat-shrinkable sleeve for a neat finish and resistance to knocks and light weather exposure. It has an SMA male connector that fits many handheld models and accepts up to 20 watts of power according to the manufacturer. For those seeking a simple upgrade, this antenna can offer clearer signals and slightly longer range compared to many rubber duck antennas.
Technical Specifications
- Name: Retevis RHD771
- Frequency range: 136-174 MHz and 400-470 MHz
- Gain: 2.15 dBi
- Power handling: 20 W
- Length: 36.5 cm
Benefits
With a defined gain of 2.15 dBi, the antenna balances improved reception and a compact form factor so it does not add excessive length to a handheld set. It is compatible with a wide list of makes and models, which includes several Retevis and Baofeng handhelds as well as TYT and Wouxun radios, allowing it to be used as a general replacement or spare. The SMA male connector provides a secure mechanical and electrical interface, which helps reduce intermittent contacts when used during active movement. Note that this is a single-piece, non-retractable antenna and may not suit users seeking ultra-discreet setups.
📡 The construction materials aim to keep weight low while providing stability during normal outdoor use. 🔧 Maintenance is straightforward, a quick wipe and visual check usually suffice after excursions.
Usage Recommendations
Attach the antenna firmly to any handheld radio with an SMA-M socket and ensure the connector threads are clean before tightening. For better performance, keep the radio held upright and avoid shielding the antenna with the body or metal objects. Consider that handheld antennas will not match the range of a dedicated mobile or base antenna, especially in obstructed urban environments, but they do improve portable reliability for short to medium distances.
