Bingfu 42.5-inch Foldable Tactical (SMA-Female) vs Nagoya NA-771 (SMA-Female)

The Nagoya NA-771 is the clear winner for most users, despite costing only $2 more.

The single most important differentiator is how each antenna performs on VHF. The Bingfu's 42.5-inch length gives it a respectable half-wave electrical length at 146 MHz, delivering realistic 2.6 dBi gain. The Nagoya is electrically short on VHF at just 0.19 wavelengths, producing a mediocre -1.0 dBi. However, the Nagoya excels on UHF, where its 0.57-wavelength design hits near five-eighths wave performance with 2.9 dBi gain. The Bingfu stumbles badly on UHF as a multi-wavelength antenna, realistically delivering -1.0 dBi despite claiming 3.5 dBi, a claim that is unsupported by its electrical properties.

The Bingfu suits users whose primary interest is VHF FM repeater work on handhelds, where its folding design and half-wave efficiency shine. The Nagoya suits dual-band operators who split their time between VHF and UHF, since it performs respectably on both bands and avoids the Bingfu's UHF compromise.

Buy the Nagoya NA-771 unless you operate almost exclusively on VHF, where the Bingfu's half-wave advantage justifies the trade-off in UHF performance.