[Hi-zreceivingarraydiscussions] Array (4sq) not working properly

[Roger D Johnson]

Hi Randy....

The grounds should make very little difference in this array due to the high 
impedance
preamps. What preamps are you using? I would measure the voltage from the preamp
antenna terminal to ground. They should all be the same at about 5 volts.

73, Roger

On 9/18/2012 6:42 AM, Randy Lake wrote:
> Good morning.
> I am trying to get an old 4sq setup working finally with not much luck. I
> think it may have something to do with my ground or soil type.I can barely
> get a 2 ft ground rod in without hitting rock.
> I just moved the array to a more level area. Slopes maybe 1-2 ft in the
> 80ft distance.
> I am using 19' elements (old 20m tapered elements). They are mounted to
> angle iron driven into the ground with 1 1/4 pvc attached to that then the
> element mounted inside the PVC with the element held about 8in above the
> angle iron inside the PVC. The ground rod is next to the angle iron.
> The relays in the controller all work correctly.
> The LED's are all on at each amp.
> The delay lines and element feed lines are all factory cut.
> The feed line feeding the array is tested as okay.
> I am also using a Hi-Z preamp out at the array and a 75-50 ohm on the
> feedline in the shack.
>
> Issues:
> The noise level does not change much at all compared to the TX antenna.
> directivity is minimal, barely noticeable.
>
> I am thinking I may remove the preamp and am considering adding additional
> ground rods or radials at each vertical.
>
> Any thoughts or comments ?
>
> Randy N1KWF
>

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