Web概要 lfa-q アンテナはブーム長メートル換算で従来型八木アンテナ比較で一層高いゲインが得られます。. 短いブームで高いゲインをお求めなら、このアンテナです。 g0ksc ジャスティンにより、 クワッドは革新的な変化 を遂げました。 全波長のループエレメントを備えたクワッドスタイルの ... WebEFHW-8010-1K-Plus™ Multi-Band End Fed Half Wave Antenna. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Unlike many END FED antennas on the market, this one does …
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WebComes with a rugged insulated-wire radiator that prevents detuning when contacting limbs/branches. "No-snag" end insulator slides over branches and through foliage without hang-ups. Toss your EFHW over a high limb for an inverted-V, raise the far end high for a powerful sloper, or even go vertical with an inverted-L. Dark jacketed wire is ... Web"No-Tune" EFHW Tuner. It occurred to me that if the toroid could be made with enough reactance in the primary winding to be large with respect to the antenna resistance, the … famous people on university challenge
End Fed Half Wave Antennas: Is a Primary Capacitor Really …
http://pages.suddenlink.net/wa5bdu/efhw.htm WebMay 27, 2024 · The transformer was attached to the 30 meter EFHW antenna and turns were removed for best match to 50 ohms. The final turns ratio turned out to be 3:29. The SWR for 30 meters, 1.05:1, was the lowest of all three antennas since the transformer was tuned for impedance match at 30 meters. The SWR for the 20 meter EFHW antenna was … WebProject by Frank Bontenbal, PA2DKW Process photos by Bob Inderbitzen, NQ1R Please note: This kit is available from ARRL.The original assembly instructions are available … copying onedrive files to external drive