YOA-080 Portable Broadband Omnidirectional Antenna

The YOA-080’s typical VSWR stays below 3.0 over the frequency range from 400 MHz all the way to 8 GHz. That single figure is the reason to choose this antenna. A monitoring receiver sees the same order of mismatch wherever it tunes, so one correction holds across a full sweep. Below 400 MHz there is no coverage: VHF land mobile, broadcast FM and the low trunked bands fall outside the range. Those services are what send you to the YOA-090 instead. Gain is 2 dBi typical and omnidirectional in the horizontal plane, which makes this a search antenna rather than a direction finder. Work in absolute terms from the antenna factor, not from gain alone.

Handling and Acceptance

At a weight of 30 g and 13 mm thick, it rides on a handheld analyser or clamps to a mast without a counterweight. Keep drive below the 10 W input rating when the antenna sits close to a transmitter. On arrival, sweep the SMA(M) port on an analyser with 50 Ω impedance and confirm VSWR holds across the band to 8 GHz. Band edges are where a broadband whip degrades first.