[amsat-bb] Re: homebrew Loop yagi

w7lrd@comcast.net w7lrd at comcast.net
Thu Jan 29 10:33:00 PST 2009

I should have mentioned this is for 1.2Ghz and the feed to the DE is UT-141

"if this were easy, everyone would be doing it"

-------------- Original message -------------- 
From: w7lrd at comcast.net 

> Hello 
> I am looking for some brain power from anyone who has built loop yagi's. I am 
> getting my information from The ARRL Antenna book 20th edition. The book says 
> follow exactly, however. It calls for alluminum elements 0.0325 thick, I have 
> copper 0.025 thick. It calls for 3/4" alluminum boom I have 3/4 copper and some 
> 1/2" stainless steel channel. The feed to the driven element is UT-14, I have a 
> short piece with a SMA already attached, will connecting the SMA to a SMA-N 
> adapter be acceptable? I have seen the pretty pictures of Directive Systems 
> antennas http://www.directivesystems.com/loopyagi.htm 
> Same idea only different parts. Are these things pretty "forgiving" or are the 
> components critical? Also comparing the loop to a quagi the loop widths are 
> 1/4" wide and the quagi used #18 wire, why? My intent is satellites and/or 
> terrestial. Thanks for the bandwidth. 
> 73 Bob W7LRD 
> CN87 
> AMSAT 28498 
> -- 
> "if this were easy, everyone would be doing it" 
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