[TowerTalk] 4 SQ arrays

[Jan Erik Holm]

Now I see my error. I checked at .35 wl spacing
and that will give about .5 wl on the diagonal.
Don´t know why I wrote 1.5 wl and 2 wl below,
my fingers are to fast for my brain.
Anyway, at .35 spaceing the F/B doesn´t seem
to get better, what I wrote below will happen.

Jim SM2EKM
-------------------

Jerry Muller wrote:

> Actually you want to go to sqrt(2)/4 spacing. The gain and front to back
> improve slightly.
> 
> 73, Jerry K0TV
> 
> ----- Original Message ----- 
> From: "Jan Erik Holm" <sm2ekm at telia.com>
> Cc: "'towertalk'" <towertalk at contesting.com>
> Sent: Friday, November 19, 2004 10:06 AM
> Subject: Re: [TowerTalk] 4 SQ arrays
> 
> 
> Improved in what way? Did a quick check in NEC.
> When going to about 1.5 wl spaceing, that will
> give about 2 wl on the diagonal, two strong
> aditional back loobes comes up in low elevation.
> Hardly does anything to the strong high angle
> rear loob which is very narrow and generaly isn´t
> a big problem. Gain comes up with about .5 dB.
> Do I miss something? I can´t see the improvement.
> 
> 73 Jim SM2EKM
> ----------------
> 
> Roger D Johnson wrote:
> 
> 
>>For those using Comtek and other boxes that restrict
>>one to 90 and 180 degree phasing, you can get an
>>improved pattern by increasing the spacing between
>>elements. A half wave across the diagonal seems to
>>work well.
>>
>>73, Roger
>>
>>
> 
> 
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