ABBREE GMRS 42.5-inch Tactical (SMA-Female) vs HYS-771N Dual-Band Whip (SMA-Female)

The HYS-771N is the clear winner for dual-band use, though context matters for choosing between them.

The fundamental difference is electrical efficiency per band. The ABBREE is a GMRS-only antenna that's physically long but electrically inefficient at 1.68 wavelengths, delivering realistic performance around negative 1.0 dBi despite claiming 5 dBi. That's an overstated specification by roughly 6 decibels. The HYS-771N covers both VHF and UHF with realistic performance of negative 1.0 dBi on VHF (electrically short) and 2.9 dBi on UHF (where it reaches 5/8 wavelength). Its 2.5 dBi claim is honest and supported by its design.

The HYS-771N's dual-band capability at nearly twice the price represents better value if you need both frequencies. Buy the ABBREE only if you operate exclusively on GMRS and want to save eight dollars despite accepting poor efficiency. The HYS-771N suits anyone running VHF/UHF dual-band radios where at least UHF performance matters.

The HYS-771N deserves the higher score and your money. It's more versatile, more honest about what it delivers, and performs meaningfully better where it counts.