Build a random wire end fed antenna and make amazing contacts #hamradioqa
Can a non resonant antenna be efficient? It sure can. I show you how to build a non resonant random wire antenna with a 9:1 transformer.
FT-140 43 mix Ferrite Toroid: https://www.mouser.com/ProductDetail/Fair-Rite/5943002701
Toroid Core FT140-43 Ferrite: https://amzn.to/3WKPApC
18ga Enameled Magnet Wire: https://amzn.to/3WFhSBX
4 in. x 4 in. x 2 in. PVC Junction Box – Gray: https://www.homedepot.com/p/Carlon-4-in-x-4-in-x-2-in-PVC-Junction-Box-Gray-E989NNJ-CAR/100404097
Homebrew Antenna Challenge:
Random Wire end fed antenna resources:
https://toroids.info/FT140-43.php
https://sprott.physics.wisc.edu/technote/randwire.htm
https://udel.edu/~mm/ham/randomWire/
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Timestamp
00:00 Introduction
00:33 End Fed Antennas
01:22 Random wire antennas: long wire or end fed Zepp
03:11 Wire Lengths are important
04:09 Ferrite cores and wire
06:55 Building the 9:1 transformer
09:28 Installing the antenna
11:05 Testing and making contacts
15:12 Advantages and Disadvantages of non resonant antennas
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#hamradio #amateurradio #hamradiohowto #antenna #antennaproject #nonresonantantenna #randomwireantenna #endfedantenna #efhw #endfedhalfwave #balun #unun #9to1transformer
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