Topband: K9AY phased array

[Dave Court]

Hi
I have been using a home brew K9AY loop on 160m for some time and have 
had similar (but not as bad) results as described by Dave G4GED. However 
  Mike WA5POKs comments have also got me wondering.

I have been wondering what to do for an RX antenna in Bahrain (A9). 
Although I think I can erect a reasonable TX antenna, the plot size of 
my QTH is not excessive. It is also extremely dry, so I was interested 
in Mike's comments about watering. Not a good idea when water is more 
expensive than gasoline!

My choice seems to be a K9AY which may not work too well because of 
proximity to the TX antenna and lack of a good ground or running out an 
un-terminated beverage type wire in a NW/SE configuration on the surface 
of the dessert common land nearby. This might however have to run across 
TX antenna radials.

Any views?

73s Dave


>>> 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.
> 

-- 
This Email comes from Dave Court - EI3IO, G3SDL, OZ3SDL
QTH (Grid) Locator - IO63WF
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