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

Randy Lake randyn1kwf at gmail.com
Tue Sep 18 10:53:05 EDT 2012


Thanks Tim. I will pull the amps off and bring them in and compare to a new
one that Lee sent me last year that he built that has not been used yet and
see where I went wrong.
Appreciate the help.
Randy

On Tue, Sep 18, 2012 at 10:45 AM, Tim Duffy K3LR <k3lr at k3lr.com> wrote:

> Randy - if you measure zero volts from each antenna element to ground (as
> you said below) - there is a problem! You should have about 5 volts DC on
> each element to ground.
>
> 73,
> Tim K3LR
>
> -----Original Message-----
> From: hi-zreceivingarraydiscussions-bounces at hizantennas.com
> [mailto:hi-zreceivingarraydiscussions-bounces at hizantennas.com] On Behalf
> Of
> Randy Lake
> Sent: Tuesday, September 18, 2012 7:44 AM
> To: Hi-Z Receiving Array Discussions
> Subject: Re: [Hi-zreceivingarraydiscussions] Array (4sq) not working
> properly
>
> The 40m beam is at 100' about 200'away
> The 80m dipole is at 95' about 200' away
> The 160m shunt fed tower has not been completed yet.
>
> Thanks. Randy
>
> On Tue, Sep 18, 2012 at 8:41 AM, <f6bki at orange.fr> wrote:
>
> > Hi Randy , is your TX antenna  well detuned ?
> > 73
> > Jacques F6BKI
> >
> > -----Message d'origine----- From: Randy Lake
> > Sent: Tuesday, September 18, 2012 12:30 PM
> > To: Hi-Z Receiving Array Discussions
> > Subject: Re: [Hi-**zreceivingarraydiscussions] Array (4sq) not working
> > properly
> >
> >
> > Hi Roger. I am using the original preamps. They were tested last year by
> > Lee and said to be ok.
> > I just went out to measure the V at the antenna term and ground and they
> > were all the same. 0volts. The LED's are all on.
> >
> >
> > On Tue, Sep 18, 2012 at 7:51 AM, Roger D Johnson <n1rj at roadrunner.com
> > >wrote:
> >
> >  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
> >>>
> >>>
> >>>  --
> >> Remember the Liberty (AGTR-5)
> >> http://www.usslibertyveterans.****org/ <http://www.**
> >> usslibertyveterans.org/ <http://www.usslibertyveterans.org/>>
> >> http://www.gtr5.com/
> >>
> >>
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> > --
> > Randy Lake N1KWF
> > 73 Gunn Rd.
> > Keene,NH
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> --
> Randy Lake N1KWF
> 73 Gunn Rd.
> Keene,NH
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-- 
Randy Lake N1KWF
73 Gunn Rd.
Keene,NH



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