Mirkit 15.6-inch Dual-Band Whip (SMA-Female) vs TIDRADIO TD-771 GMRS (SMA-Female)

The TIDRADIO TD-771 is the clear winner here. Both antennas use the same connector type and physical form factor, but electrical length determines real-world performance, and that's where they diverge significantly.

The Mirkit struggles on VHF where it's electrically short at 0.19 wavelengths, delivering compromised performance at 146 MHz. Its UHF performance at 0.57 wavelengths is respectable but falls short of ideal. The TIDRADIO, by contrast, operates at 0.60 wavelengths on GMRS, delivering the proper 5/8 wave electrical length that actually works. Its claimed 2.15 dBi gain is realistic and supported by its physical dimensions, not inflated marketing.

The single most important differentiator is electrical length on each band. The Mirkit sacrifices VHF performance to cover two bands with one antenna. The TIDRADIO commits to one band and does it right.

The Mirkit makes sense for someone who absolutely must have dual-band capability in a single whip, despite the VHF compromise. The TIDRADIO is for anyone who wants straightforward performance on GMRS without settling for a short antenna.

Buy the TIDRADIO unless you specifically need dual-band coverage. It costs less, scores higher, and actually delivers the electrical length that matters.