[TowerTalk] BIG WIRE BEAMS FOR 75 METERS

[Richard (Rick) Karlquist]

The general consensus of the big guns on 75 meter
long path (mainly west coast to EU) was:

1.  Yagi's hear better than verticals

2.  On receive, having low sidelobes is more important
than forward gain or RDF or beam width, especially if
your noise is not uniform.  For example, my quietest direction,
fortuitously, is 210 degrees, the direction of long path to Europe.
Rejection of noise from other directions makes all the
difference.  A 4 square adjusted for a really clean
pattern may hear better than 7 elements with sidelobes.
Also, the 4 square should NOT be wide spaced.

3.  Yagi's need to be a half wave high to really play,
but they may still hear OK at a lower height.

4.  Verticals with a good ground system are as good
as Yagi's for transmit depending on your ground conductivity.
Fortuitously, I have very high ground conductivity, but
of course YMMV.

If you go with verticals, you generally need an alternate
receive antenna strategy.

Rick N6RK

On 7/16/2013 8:26 AM, Jorge Diez - CX6VM wrote:
> I you have the supports for a 7 elements wire beam, I think will work as
> support for 7 wire verticals, right?
>
> Which is better, more gain? The 7 elements wire beam or 7 wire verticals
> with the corresponding radials?
>
> Thanks!
> Jorge
> CX6VM/CW5W
>
> -----Mensaje original-----
> De: TowerTalk [mailto:towertalk-bounces at contesting.com] En nombre de Richard
> (Rick) Karlquist
> Enviado el: martes, 16 de julio de 2013 12:11
> Para: floyd koontz
> CC: towertalk at contesting.com
> Asunto: Re: [TowerTalk] BIG WIRE BEAMS FOR 75 METERS
>
> One of the regulars on 3.795 MHz around west coast sunrise a few years back
> had a wire beam with something like 7 elements beaming the long path to
> Europe.  He got great results with it.
>
> Rick N6RK
>
> On 7/16/2013 5:47 AM, floyd koontz wrote:
>> Sergio all of my info on this subject is on my website  www.wa2wvl.com
>>
>> In New Youk I had a 7 element on a 100 meter boom 100 feet in the air
> toward JA. It worked great.
>>
>> Floyd
>>    		 	   		
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