PowAbeam Antennas offer a range of high-performance VHF and UHF Yagi antennas conceived by Derek Hilleard (G4CQM) and hand-built to order by The DX Shop in the UK.
Advanced Optimized Wideband Antenna (AOWA) style and low-Q Yagis, designed for wider bandwidth and improved stability during rain, snow, or wet weather conditions.
Derek is one of the very few Radio Amateurs to own the powerful design software from Brian Beezley (K6STI) both YO7 and AO 'professional' versions.
For several decades now radio enthusiasts have made efforts to refine yagi designs using a range of tools. Pioneering amateurs like Günter Hoch had access to a test range belonging to the German Post Office. He carried out extensive tests on VHF/UHF yagi designs in a bid to quantify his measurements and make improvements. This led to a range of DL6WU designs which were adopted widely across the globe.