[HCDX] K9AY = Super Antenna?
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[HCDX] K9AY = Super Antenna?



Hi Alf and all the others!

I tested a temporarily home brew K9AY-antenna and compared ists behaviour with and without ground.
Result is, that the antenna doesnt work anymore without ground.
It loses the f/b directivity.

It needs   g o o d    ground (Just like the EWE).

This has been proved and documented and lead to the development of the pennant antenna, which is better in this regard.
Pennant and flag antennas are ground free antennas. I can recommend these despite of their larger dimensions.
They are easy to home brew.

Description of the pennant antenna: In English see QST 7/2000, in German see funk 7/2000. Or here http://www.angelfire.com/md/k3ky/page37.html

Roland HB9BQR