[amsat-bb] Re: Cross Boom
ptrowe at yahoo.com
Wed Apr 22 09:37:44 PDT 2009
Indeed, my M Squared cross polarized Yagis need to be on a fiberglass boom. The coax from each of them heads straight back into the air and forms a loop down to the mast several feet below the elevation rotor.
E mail me direct and I'll send you photos if you want.
You'll be happier with a fiberglass boom.
--- On Wed, 4/22/09, Joe <nss at mwt.net> wrote:
From: Joe <nss at mwt.net>
Subject: [amsat-bb] Re: Cross Boom
To: "Billy Simpkins" <bsimpkins31 at dishmail.net>
Cc: amsat-bb at amsat.org
Date: Wednesday, April 22, 2009, 7:06 AM
It all depends on how the elements are mounted.
If at 45 to 90 degrees from the crossarm, no propblem and use anything,
But if in the same plane then need insulated crossboom,
But then if you go insulated then do not run the feedline along it
either or you just defeated the purpose of the insulated boom.
Billy Simpkins wrote:
>Is a fiber glass or some other non-conductive material necessary for a
cross boom? What or the advantages and disadvantages versus a metal one?
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