Yet another End Fed Half Wave transformer
Автор: Utesändaren
Загружено: 2020-04-24
Просмотров: 3491
Описание:
I enjoy making different transformers and discuss transformers in several of my videos in Swedish, but this one is in English for some variety... except that it's still about transformers. I test two different 49:1 end fed half wave (EFHW) transformers, one with 3 primary windings (and a capacitor) and the other with 2 primary windings (without capacitor). I'm also ranting a bit about RG58 coax and antenna efficiency.
The transformer enclosure is a RND 455-00997 (by RND Components). Probably bought from here https://www.elfa.se/sv/plastlada-58x6...
Videos referenced in this episode:
• EFHW för 80-40-20-10+30m (ändmatad halvvåg...
• Zenitkonceptet | Radiokommunikation | Kortvåg
• 49:1 vs 9:1 Vilken har mest förlust?
• Ändmatad vs dipol - uppföljning
• Ändmatade antenner (longwire, randomwire, ...
Articles mentioned in the video:
https://github.com/sa6mwa/miscellaneo...
NEC2 antenna modelling of EFHW vs LW vs dipole:
https://github.com/sa6mwa/nec2-gnuplo...
Gear seen in the video...
http://www.sark110.com/
http://www.amidoncorp.com/ft-140-43/
Enclosure for the transformer by RND Components.
Support The Outsender on Patreon...
/ outsender
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