[Antennas] 80m EDZ for NVIS

[Raymond Brown]

2 1/4 wave dipoles would be sufficient for an EVIS antenna. 
Interesting concept, I never entertained the idea of running 5/8-wave dipoles in a horizontal mode. Each element would be 50 m long! Have you done any modeling of a 5/8-wave dipole? It sounds interesting, but as I said, you gotta have a lot of real estate to run that! That’s like 310 feet!


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On Wednesday, September 3, 2025, 1:38 PM, Rob Matherly, W0JRM <w0jrm at jrobertmatherly.com> wrote:

So just skip the balanced line and run a balun with two 5/8 wl wires on 
the poles?

On 2025-09-03 13:19, Raymond Brown wrote:
> The 300 ohm twin lead would just be the feedpoint up to the balun. If 
> you select the right Balun, you can feed it with coax. So basically you 
> need to bring up a 80 m dipole 10 feet off the ground. 


-- 
Thanks,
Rob Matherly, W0JRM
Centerville, Iowa - EN30nr
http://w0jrm.jrobertmatherly.com
NAQCC #7688, FPQRP #-330, FISTS #19246, QRP ARCI #16952