[NLRS] K1FO Yagi and UT-141 Balun ?

[Ray J]

 the k1fo designs  are also in one of the arrl hand books  from a few 
years ago... i built one.. the  22 element 432  design...   well 
actually I stoped at 19 .  didn't want to add more boom on for 3  
elements,  it works well, and was  the highest gain 432 antenna (well 
tied with a 25 element actually) on range at au04..   
http://www.nlrs.org/AntennaGain/2004Au.pdf

U should be able to find some ut141 pretty easily... its not regualr 
coax but instead  its "hardline" with a copper jacket around a teflon 
core..   i have picked up the stuff on ebay for cheap ..   u might have 
a local u can buy it from.. i think u need less than a foot

the problem i find is paying directive systems the big money ($40)  for 
the element keepers and insulators...(enough for 50 elements)... theres 
gotta be a place where a person can buy them cheaper.... but if their is 
i cant find it...

and yes, its fun drilling all them holes straight in the higher band 
yagis... 

directive systems makes a good k1fo yagi a little smaller than u are 
looking at....
  http://www.directivesystems.com/DSFO432-25.htm

Ray J
w9ray


christenson at charter.net wrote:

>I need a little help finding and identifying (UT-141). It is used as the balun in the K1FO antenna for 432. Also, would like any input on this antenna. Is it worth it to build? Looks like fir a 33 element it would cost about $100 in parts or so. This antenna is in the Jan. 1988 QST. Also in the VHF/UHF antenna classics paperback.
>
>Thank You,
>Kris
>KC0REO
>If it don't propagate, I don't operate
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