Bingfu Dual-Band NMO Mobile vs Comet CA-2X4SRNMO Dual-Band Mobile

The Comet CA-2X4SR is the clear winner for performance, despite its higher price.

The single most important differentiator is VHF performance. The Bingfu is electrically short on VHF at just 0.20 wavelengths, which severely limits its effectiveness on that band regardless of construction quality. The Comet's half-wave design at 0.49 wavelengths on VHF delivers roughly 3.5 dBi of realistic gain versus the Bingfu's compromised 0.7 dBi. On UHF both antennas perform reasonably well, with the Comet slightly ahead at 5.4 dBi. The Comet's longer physical length is the reason for this superiority, not marketing claims.

The Bingfu suits budget-conscious operators who primarily use UHF or accept that VHF performance will be marginal. The Comet is the choice for anyone who needs balanced dual-band capability, especially if VHF is part of regular operation.

Buy the Comet CA-2X4SR if you plan serious dual-band mobile use. The performance gains on VHF justify the cost difference. The Bingfu works as a cost-saving mobile antenna only if your operating patterns heavily favor UHF.