The Antenna Factory HF-30B is a 1.5-30 MHz antenna. This antenna operates on a full band bandwidth. The gain is 2.15 dBi. The VSWR is ≤ 2 and the nominal impedance is 50 Ω. This antenna has a horizontal polarization. The maximum power rating is 150 W. The length is 15 m / 49.21 ft. The rated wind velocity is 135 mph (216 km/h) and it has a UHF Female connector.
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PDF: http://www.antennafactory.com/pdf/hf/hf-30b.pdf