[amsat-bb] Re: Yagi balance point

David Wing david at cdwing.com
Tue Nov 10 11:27:28 PST 2009


Inside the boom is a great idea but unfortunately I think it would be a bit
difficult as the rearmost reflector is only 1 inch from the end of the boom
and it goes right through the boom.  

It could be done but I don't think the wind loading reduction would out
weight the "pain in the butt" factor.

Appreciate the suggestion though!

73, David

-----Original Message-----
From: Nigel Gunn G8IFF/W8IFF [mailto:nigel at ngunn.net] 
Sent: Tuesday, November 10, 2009 10:57 AM
To: Joe Fitzgerald
Cc: David Wing; amsat-bb at amsat.org
Subject: Re: [amsat-bb] Re: Yagi balance point

How about putting them inside the boom?

Joe Fitzgerald wrote:
> 
> As a practical matter, I'd use the fishing weights tucked in as close to
> the boom as possible to keep the additional wind load down.  In fact if
> the boom is hollow, you could stick the weights inside and not increase
> the wind load at all.  As long as the metallic counterbalance is not
> actually touching any elements you will be fine.
> 
> -Joe KM1P
> 
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-- 
Nigel A. Gunn,  1865 El Camino Drive, Xenia, OH 45385-1115, USA.  tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF),  e-mail nigel at ngunn.net       www
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