Topband: K9AY phased array

wa5pok at peoplepc.com wa5pok at peoplepc.com
Mon Aug 10 20:05:31 PDT 2009


> > Was wondering to try a Wellbrook K9AY phased array.
> > Is there someone that have seen this or have already installed it.
> 
 no
> directional properties and was pretty deaf. It wasn't faulty, worked
> OK on MW BC stations but not on TB. Could have been due to the fact
> that it was sited only about 15 metres from my Inv L? Tried detuning
> the Vertical on receive cycles but it didn't help.
> 

I use the K9AY loop and one side of the loop is only 2 meters from 
one elevated radial.
1. My inverted L is grounded during receive for noise reduction 
(used info from ON4UN's book) and 
2. When it becomes deaf or looses directivity, I have lost my ground 
due to excessive dry WX. 

Lots of watering of the ground and cleaning the ground rod restores 
the operation of my AY loop.

73, Mike WA5POK


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