Nagoya NA-771 (SMA-Female) vs Nagoya NA-771G (GMRS)

The NA-771G is the clear winner for its intended purpose. Both antennas are physically similar and identically priced, but electrical length is what matters, and the NA-771G delivers superior performance where it's designed to work.

The critical difference is band-specific optimization. The standard NA-771 operates as an electrically short whip on VHF (only 0.19 wavelengths), delivering compromised performance at 146 MHz despite the 3 dBi claim. On UHF at 435 MHz it reaches a proper 5/8 wave electrical length with realistic 2.9 dBi gain. The NA-771G, tuned for GMRS at 465 MHz, achieves 0.60 wavelengths (true 5/8 wave) with realistic 3.1 dBi performance across its operating band.

The NA-771 suits operators working primarily UHF frequencies who can tolerate VHF compromises or don't use that band. The NA-771G is built for GMRS users who want an antenna optimized to their band.

If you operate GMRS, buy the NA-771G and get a 5-point score advantage reflecting genuine electrical optimization. If you need dual-band flexibility or primarily work UHF repeaters, the standard NA-771 remains functional, though neither antenna is ideal for serious VHF work on any handheld.