Bingfu Dual-Band NMO Mobile vs HYS 21-inch NMO Kit with L-Bracket

The HYS 21-inch wins across the board, despite the counterintuitive score difference. On VHF, the HYS delivers a proper quarter-wave design with 2.2 dBi versus the Bingfu's compromised 0.7 dBi. On UHF, both perform similarly around 4.6-4.7 dBi, but the HYS achieves this with a full-wave design that's more predictable. The Bingfu's VHF performance is its critical weakness: at 0.20 wavelengths, it's electrically short and will always underperform, regardless of marketing claims.

The single most important differentiator is VHF electrical length. The Bingfu sacrifices VHF entirely to keep price and size down, while the HYS balances both bands properly.

The Bingfu suits budget-conscious operators who primarily work UHF and accept VHF as secondary. The HYS is the better choice for anyone who regularly uses both bands equally.

Buy the HYS 21-inch. The extra twenty dollars gains you a quarter-wave VHF element that actually works, plus the included bracket adds practical value. False economy on antennas compromises your entire station.