From k1uo at tds.net  Sun Apr 26 16:08:43 2015
From: k1uo at tds.net (Larry - K1UO)
Date: Sun, 26 Apr 2015 16:08:43 -0400
Subject: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land
Message-ID: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>

Hi all,  

The 4-8 Pro system is finally being reinstalled at a new qth using the 113ft circumference design.  This time the array is in an open field but on an overall sloping area with about a 4 to 5 degree slope from the East side and lowest toward the West side.   A not so scientific guess would be that the vertical bases may be as much as 2ft lower on the West side than the East.  Has anyone already installed their array in a situation such as this and did you notice any particular degradation or enhancement of the array performance?

Larry  K1UO

From davek4sv at yahoo.com  Sun Apr 26 17:41:00 2015
From: davek4sv at yahoo.com (Dave Anderson)
Date: Sun, 26 Apr 2015 17:41:00 -0400
Subject: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land
In-Reply-To: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>
References: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>
Message-ID: <9DB60004-C624-4826-BF67-1C1AA1C98DD8@yahoo.com>

Hi Larry

My 8 circle has probably 5 to 8 feet different elevation.  I've checked the performance carefully and I see not degradation.

Last week I removed the Antennas amps and disconnected the Antenna feedlines at the phase controllers, this keeps ground currents on lightning hits to nearby trees etc from damaging the phase controller.  I'm chicken, it's costly when array gets damaged.

Good luck, 73

Thanks,
Dave Anderson, K4SV
Sent from my iPhone 6+

> On Apr 26, 2015, at 4:08 PM, Larry - K1UO <k1uo at tds.net> wrote:
> 
> Hi all,  
> 
> The 4-8 Pro system is finally being reinstalled at a new qth using the 113ft circumference design.  This time the array is in an open field but on an overall sloping area with about a 4 to 5 degree slope from the East side and lowest toward the West side.   A not so scientific guess would be that the vertical bases may be as much as 2ft lower on the West side than the East.  Has anyone already installed their array in a situation such as this and did you notice any particular degradation or enhancement of the array performance?
> 
> Larry  K1UO
> _______________________________________________
> Hi-zreceivingarraydiscussions mailing list
> Hi-zreceivingarraydiscussions at hizantennas.com
> http://mail.hizantennas.com/mailman/listinfo/hi-zreceivingarraydiscussions_hizantennas.com



From k1uo at tds.net  Sun Apr 26 18:37:10 2015
From: k1uo at tds.net (Larry - K1UO)
Date: Sun, 26 Apr 2015 18:37:10 -0400
Subject: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land
In-Reply-To: <9DB60004-C624-4826-BF67-1C1AA1C98DD8@yahoo.com>
References: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>
	<9DB60004-C624-4826-BF67-1C1AA1C98DD8@yahoo.com>
Message-ID: <69399BDA8C9A4BDE9132633683AEE7E6@DenComputer>

Thanks Dave,  Just the kind of real world info I needed to make a decision. 
Much appreciated and enjoy your Summer.

Regards
Larry  k1UO

-----Original Message----- 
From: Dave Anderson
Sent: Sunday, April 26, 2015 5:41 PM
To: Hi-Z Receiving Array Discussions
Subject: Re: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land

Hi Larry

My 8 circle has probably 5 to 8 feet different elevation.  I've checked the 
performance carefully and I see not degradation.

Last week I removed the Antennas amps and disconnected the Antenna feedlines 
at the phase controllers, this keeps ground currents on lightning hits to 
nearby trees etc from damaging the phase controller.  I'm chicken, it's 
costly when array gets damaged.

Good luck, 73

Thanks,
Dave Anderson, K4SV
Sent from my iPhone 6+

> On Apr 26, 2015, at 4:08 PM, Larry - K1UO <k1uo at tds.net> wrote:
>
> Hi all,
>
> The 4-8 Pro system is finally being reinstalled at a new qth using the 
> 113ft circumference design.  This time the array is in an open field but 
> on an overall sloping area with about a 4 to 5 degree slope from the East 
> side and lowest toward the West side.   A not so scientific guess would be 
> that the vertical bases may be as much as 2ft lower on the West side than 
> the East.  Has anyone already installed their array in a situation such as 
> this and did you notice any particular degradation or enhancement of the 
> array performance?
>
> Larry  K1UO
> _______________________________________________
> Hi-zreceivingarraydiscussions mailing list
> Hi-zreceivingarraydiscussions at hizantennas.com
> http://mail.hizantennas.com/mailman/listinfo/hi-zreceivingarraydiscussions_hizantennas.com

_______________________________________________
Hi-zreceivingarraydiscussions mailing list
Hi-zreceivingarraydiscussions at hizantennas.com
http://mail.hizantennas.com/mailman/listinfo/hi-zreceivingarraydiscussions_hizantennas.com 




From k7tjr at msn.com  Sun Apr 26 22:39:17 2015
From: k7tjr at msn.com (Lee  K7TJR)
Date: Sun, 26 Apr 2015 19:39:17 -0700
Subject: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land
In-Reply-To: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>
References: <6ED1E31EB38F4B8B81AAAC83BBB98964@DenComputer>
Message-ID: <COL402-EAS4305E76DD6D4C0CECEEC42F5E90@phx.gbl>

Hi Larry,
  As near as I can tell, the only change in the pattern as a result of you 5
degree slope will be that the peak pattern will be up 5 degrees in the up
direction and down 5 degrees in the down direction. 
This generally would likely never be noticed. I have programmed this by
looking at elements leaned over in Eznec and it confirms the pattern peak
follows the slope.

Lee  K7TJR

-----Original Message-----
From: Hi-zreceivingarraydiscussions
[mailto:hi-zreceivingarraydiscussions-bounces at hizantennas.com] On Behalf Of
Larry - K1UO
Sent: Sunday, April 26, 2015 1:09 PM
To: Hi-Z Reflector
Subject: [Hi-zreceivingarraydiscussions] 4-8 Pro on sloping land

Hi all,  

The 4-8 Pro system is finally being reinstalled at a new qth using the 113ft
circumference design.  This time the array is in an open field but on an
overall sloping area with about a 4 to 5 degree slope from the East side and
lowest toward the West side.   A not so scientific guess would be that the
vertical bases may be as much as 2ft lower on the West side than the East.
Has anyone already installed their array in a situation such as this and did
you notice any particular degradation or enhancement of the array
performance?

Larry  K1UO
_______________________________________________
Hi-zreceivingarraydiscussions mailing list
Hi-zreceivingarraydiscussions at hizantennas.com
http://mail.hizantennas.com/mailman/listinfo/hi-zreceivingarraydiscussions_h
izantennas.com