Hy-Gain TH3JR
14 21 28 MHz 3 Element Triband Yagi - 20 15 10 Meters - JR Model
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Hy-Gain TH3jr Tri-band HF 3 Element Beam Covers 10, 15 and 20 Meters assembly instruction manual -
An analysis and performance improvement of the HyGain TH3JR on the 20 meters band.