High Power QRO HyEndFeed

The HyEndFeed antennas from netherlands are very good antennas, but the max. power from 200 watts are very low. So I experimented with a High Power version for my station.

Kerne
At first I order heavy big Ferrits. I use Teflon band to isolate it

HEF4
Here are the lengths of the wire with the data for the coil at the end

IMG_4400
By me the finish antenna wire look like this. The wire is from DX-Wire. I made the 80m version.

1 zu 25 Fertig
Here is my 1:25 Balun version

1 zu 49
Here is my 1:49 Balun version

The wire on this baluns is 2mm thick !
In my case the 1:25 balun works better with nicer resonances.

1 zu 25 in Tupper
I build everything in a Tupperware case 🙂
I ground this antenna. The big screw is for the antenna wire, the smal one near the PL jack is for the ground,

1-30
Here are the resonances from this antenna
I use it in most of the time for 30-160m.

My Tests with this antenna:

 

 

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