Homebrew hyendfed Antenna
Автор: 2e0vov
Загружено: 2020-09-26
Просмотров: 3209
I'm back with this video showing my short "hyendfed" 10/80m antenna.
Some of you will remember my homebrew "par endfedz 10/20/40" antenna and this a evolution from that. It uses the same feed transformer with a ft140-43 core with 2 primary and 14 secondary turns making a ratio of 64:1.
The loading coil of 110uH was constructed on a 40mm former using an L meter which makes the antenna about 23m long at the most.
Performance is good with a low SWR on all bands accept 80m which offers about 80k of bandwidth under 2to1.
73
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