Comet SS-460SBNMO Dual-Band Mobile vs HYS Pre-Tuned Dual-Band NMO Magnetic Mount

The HYS Pre-Tuned wins this matchup, though the margin is narrow. Both are competent dual-band mobile antennas with honest electrical lengths that support their claimed performance.

The decisive factor is VHF performance. The HYS reaches 0.25 wavelengths on 146 MHz, delivering a realistic 2.0 dBi gain versus the Comet's quarter-wave 1.6 dBi. On UHF both are equally strong, with the HYS slightly longer but performing virtually identically. The HYS also costs five dollars less while being 38 mm longer, which gives you more copper to work with and better mechanical rigidity.

The Comet SS-460SBNMO makes sense if you have limited mounting space or prefer a more compact footprint for portability. The HYS Pre-Tuned is the better choice if you value balanced performance across both bands and want a modest advantage where it matters most, the VHF side.

Go with the HYS unless space constraints force your hand. At these price points, the performance edge plus cost savings make it the smarter buy for nearly every installation.