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ARRL EFHW kit on 80 meters?

Dec 12th 2022, 09:28

WA5MD

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
I've never used one of these 49:1 baluns before. Looking for a simple and easy-to-deploy antenna for 80 meters. Doesn't have to be a DX wonder.
If I add another 66 feet of wire, making it ~132 feet, can I use the EFHW kit on 80 meters?
de Tim WA5MD, Dallas
Dec 13th 2022, 08:45

W1VT

Super Moderator

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
Yes, the EFHW transformer is designed to cover 80 through 10 meters.
https://www.hfkits.com/build-instruction-impedance-transformer-250w-for-end-fed-antennas/
The manufacturer suggests adding a coil instead of doubling the wire length.
A half wave of wire should work well as a single band 80 meter antenna. But, since the harmonic resonances move up in frequency, the simple long wire doesn't work so great as a multiband antenna.

Zak W1VT

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