采用半波 U型匹配器的折合振子八木... by VR2ZNP<A ...魔鬼魚

VR2ZNP | all galleries >> Galleries >> It’s a great hobby > 采用半波 U型匹配器的折合振子八木...


11-JUL-2008

因各振子長度都約為1/2波長,振子中點恰好位於感應電波電壓的零電位,故中點位可用金屬螺絲直接固定在金屬主樑上,不必絕緣。
而折合振子與U型匹配器的各焊接點,可用環氧樹脂膠做好防水絕緣,否則後果不堪設想。

Ricoh Caplio RR10
1/30s f/2.8 iso100 with Flash full exif

other sizes: small medium large original auto

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