[amsat-bb] Re: Cross Boom

[Jeff Yanko]

Hi all,
 I found this line confusing....

"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."

My question is if you run the coax along an insulated crossboom, ie. 
fiberglass, how could that affect the coupling of the transmission line when 
the object it is being attached to is "insulated"?


73,

Jeff  WB3JFS





----- Original Message ----- 
From: "Joe" <nss at mwt.net>
To: "Billy Simpkins" <bsimpkins31 at dishmail.net>
Cc: <amsat-bb at amsat.org>
Sent: Wednesday, April 22, 2009 7:06 AM
Subject: [amsat-bb] Re: Cross Boom


> 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?
>>
>>Thanks,
>>Billy KF0CK
>>_______________________________________________
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>>
>>
>>
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