[TowerTalk] EFHW core

[Richard (Rick) Karlquist]

How can an antenna be a "half wave" on 40 thru 10 meters
all at the same time?

Rick N6RK

On 9/21/2020 3:44 PM, Tom Osborne Sr. wrote:
> Hi All
> 
> Today I put together an EFHW antenna for 40-10.  In checking it out, the
> SWR was good and all looked like it was going to work.  Made one contact
> with it, running around 500 watts, and the core got really hot.  I am
> assuming for around 600 watts, 1 core isn't enough.
> 
> I have some more cores and was wondering, for 600 watts. How many should I
> use, 2 or 3?  I could put 3 together and make 1 core.
> 
> Running low power it works fine and doesn't get hot.  73
> Tom W7WHY
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