I have used quads for years as well as yagis.  I totally agree with Bill, W6WRT 
about the differences of quads and yagis.  I was never blessed with a high 
tower.  I was always around 50 foot or so with my big quads over the years.  I 
really never had much mechanical problems except for rotators.  Most of my 
quads were on either 30 or 45 foot booms.  Most covered 40 M thru 10 M with at 
least 7 total elements.  They did play very well but I tore up a Hygain HD 300, 
Orion 2800 and the big Yaseu over a 10 year stretch in Illinois due to wind and 
icing.  The slight advantage you get in gain with a quad can be made up with 
another director or two with a yagi and you'll save your rotator as well. 
 
73 DE W9JDJ, Denny
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