TWAYRDIO Yagi Antenna UHF 400-470MHz - Directional 7dBi Outdoor

In this review the TWAYRDIO Yagi Antenna is evaluated for hobbyists and small repeater builds who need a compact, directional UHF solution. The bottom line: it is a lightweight, weatherproof Yagi that delivers noticeable signal and range improvements across 400-470MHz with a clean 7dBi gain and solid front-to-back rejection, making it a practical choice for GMRS, ham radio receive and small repeater systems where space, wind resistance and straightforward assembly matter.

Key Features

• Frequency range: Covers UHF 400-470MHz so it works with common GMRS, 433MHz devices and many ham UHF applications.
• 7dBi gain: Provides a measurable increase in signal strength for both receive and transmit use, improving range and repeater access.
• Aluminum alloy construction: Lightweight and corrosion resistant for reliable outdoor use and long-term exposure to weather.
• SL16/UHF female connector: Standard connector simplifies hookups to popular radios and coax installations without adapters in many setups.
• Robust wind rating: Rated for wind velocities up to 60 m/s and includes a U-bracket for secure mast mounting.
• Simple assembly: Three-element design and easy tuning make installation straightforward even for first-time Yagi builders.

Who It's For

This antenna suits radio hobbyists, GMRS users and small repeater operators who need a compact directional antenna with good gain and durability for outdoor mounting. It is especially useful where front-to-back rejection and directional focus help reduce interference and reach a distant repeater or fixed station.

Those needing very high-power commercial antennas, multi-band performance, or omnidirectional coverage should look elsewhere; this Yagi is optimized for UHF single-band use around 400-470MHz and a maximum power input of 100W.

Pros & Cons

Pros

• Good build quality and corrosion-resistant aluminum alloy body that stands up to outdoor exposure.
• Noticeable signal and range improvement with 7dBi gain and >15 dB front-to-back ratio for better repeater access.
• Easy to assemble and tune, with lightweight parts and standard SL16/UHF female connector for simple hook-up.
• Solid wind resistance and included U-bracket make mast mounting secure in exposed locations.

Cons

• Mounting screws and fasteners may require checking for fit; some users noted the screw sizes or hardware could be more standardized.
• Single-band UHF design means it is not suitable for users needing multi-band or VHF coverage.

Specifications

Frequency	UHF 400-470MHz
Gain	7dBi (430MHz)
Connector	SL16/UHF female
Impedance	50 ohm
VSWR	less than 1.5
Size	430mm x 380mm
Rated wind velocity	60 m/s

Our Verdict

The TWAYRDIO Yagi is a compact, well-built UHF directional antenna that delivers practical gain and dependable outdoor performance for ham operators, GMRS users and small repeater projects. Its 7dBi gain, corrosion-resistant construction and easy assembly make it a cost-effective upgrade when directional focus and improved signal-to-noise are the priorities.

Frequently Asked Questions

Can this antenna be used with GMRS and handheld radios?
Yes; the 400-470MHz range and SL16/UHF female connector make it compatible with many GMRS and handheld setups, improving range when mounted and aimed properly.

Is the antenna weatherproof for outdoor mounting?
Yes; the aluminum alloy construction is corrosion resistant and rated for strong winds, and the included U-bracket allows secure mast attachment.

Does it require special tuning after assembly?
No special tools are required for basic use; the simple three-element design is easy to assemble and tune for good performance in the specified bandwidth.