Hamsphere 4 RDF Fast and Accurate Azimuth Finding

Demonstration of work in the Hamsphere 4 Radio Direction Finding contest.

Nulls of the Yagi Stack antenna can be used for fast finding of the beacon's direction with sub 1° accuracy despite rotator resolution of 1° and 1.5-2° width of the nulls

Front nulls of YS are located approximately at +- 23° from the main lobe (0°). But you don't need to know exact location (like 22.7°) since they are symmetric and you will compute the average.