[TowerTalk] 4 Sq array Dx or Hi Z

[Dan Schaaf]

I have heard, and I have been in conversation with both suppliers on 4 SQ 
and 8 circle receive arrays. And I have talked to guys who have owned both 
receive arrays and beverages.
The overall conclusion is that the vertical  receive arrays outperform the 4 
SQ TX array and are equal to 1,000 ft bevs.

The reason that they outperform the 4SQ TX array is that there is no real 
noise rejection on the 4 SQ TX array. They are just arrays that focus 
transmit energy.

Whereas, the receive arrays use fancy footwork in phasing that actually 
reduces the noise. It reduces noise from all directions that are not in the 
direction of reception.
So, for example, if you want to copy a weak signal to the northeast, then 
noise from all other directions is cancelled.

Normally, It is the sum of noise from all directions that smothers out the 
signal of interest. Remove the noise from east , south, west, north and all 
you have is noise from the northeast + signal.

I am embarrassed when my ham friend 300 miles from me hears DX on 160 and I 
hear nothing but noise on my vertical and on my K9AY Loop and my Mag Loop.

Which manufacturer to buy from, you do the research. I bought a 1/4 acre 
next to my house for the sole purpose of installing a dual 4 SQ RX Array, 45 
degrees apart so that I have 8 cardinal points. 80 ft radius for this 
system. When I have the available cash, I will install the system.
I know which one I most likely will buy.

Get on the Low Band chat room and ask for opinions. Those guys are the ones 
to talk to. They live for 160 meters.



Best Regards
Dan Schaaf
=================================
K3ZXL www.k3zxl.com
60 Meters www.60metersonline.net
=================================
NOBSKA www.nobska.net
Cape Cod Instruments www.gnm-inc.com
=================================

-----Original Message----- 
From: W1JCW
Sent: Thursday, September 06, 2012 6:52 PM
To: john at kk9a.com ; TowerTalk at contesting.com
Subject: Re: [TowerTalk] 4 Sq array Dx or Hi Z

I would think a full size Tx and Rx four square would work better due to 
size and you can Tx on it.

For now I wanted something to hear better as I have other Tx avenues.

If I had the room, time and resouces I would build a 160 and 80 four square 
that I can Tx on.

73-
W1JCW
John


From: john at kk9a.com
Sent: Thursday, September 06, 2012 9:29 AM
To: TowerTalk at contesting.com
Subject: Re: [TowerTalk] 4 Sq array Dx or Hi Z


That is great information, John.

I am curious if these work any better for receiving than a full sized
vertical TX four square?

John KK9A


To: <TowerTalk at contesting.com>
Subject: [TowerTalk] 4 Sq array Dx or Hi Z
From: "W1JCW" <w1jcw at hotmail.com>
Date: Wed, 5 Sep 2012 14:15:43 -0500


Hi Z seems to have a better mouse trap when compared to Dxe.

The methods and how to handle RF from near by active elements is the key
and
since I run QRO and this is important as
many indicated this to be an issue with Dxe.

I was looking at a used 4 sq from Dxe but after checking into the Hi Z
packages
I will get more bang for the buck
in the long run.

73-
W1JCW
John


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