[Lowfer] MP in MA (hijacked thread now about loop antennas)

Mitch Powell mitch.powell at sympatico.ca
Tue Sep 14 19:54:09 EDT 2010


Craig:
I see that Bill has responded to your email - and I should add the following - with credit to Bill:
See the attached file -and Step 2 in selection of conductors - and multiple conductors.
I assume you noted the two parallel #10 wires are in parallel - like an open-wire transmission lines - but are connected together at the feed points into the tuner. So I guess the dc resistance is effectively cut in half - compared to a single conductor through the trees.

Attached is Bill's article - 

73

Mitch VE3OT
-------------- next part --------------
> I may need to re-read my articles about transmitting loops, but can't
> remember why two #10 conductors in parallel are better than taking the same
> wire and making it a 2-turn loop.    Does the series resistance double while
> the radiation resistance does not fall by half with a two turn loop?
> 
> Hmm... I guess the series resistance would quadruple.  Maybe I answered my
> own question?
> 
> Thanks!
> 
> Craig - N6IO
> 
> (Beacon IO off while I get my transmitting loop set up)
> 
> 
> 
>> The wire is two pieces of #10 PVC covered - in parallel: Like an old open
> wire feedline.
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 



More information about the Lowfer mailing list