[Antennas] QUADS & BEAMS ??

[Tom]

Ed is right, this could be a long thread!  :-) There are lots of 
opinions about the subject but not a LOT of hard facts.  I will give you 
some observations I have had using both in the past:

   1. Quads are quieter (noise, static, etc)
   2. A two element quad is approximately equal to a 3 element Yagi - at
      least at fairly moderate heights.  Once you can get them really up
      there the 3 element Yagi gets the nod.
   3. A quad will perform a bit better if you can't get it very high - I
      have one at 40 ft that is quite adequate on 20 meters on up
      (Higher frequency)
   4. Quads can be fragile - ice, winds, etc.
   5. Quads turn in less space (smaller radius)
   6. You can home brew Quads and they are less expensive than a
      commercial Yagi.

If you decide to go with a quad, John, EI7BA has a great article online 
and designed a spyder quad (like a Gem Quad).  (Google EI7BA and you'll 
find the article.)  I built one also with the help of LB Cebek W4RNL a 
few years ago.  I have isolated feeds for each band (20 thru 6 meters) 
And it works well on each band.  Take a look at his pages, very informative.

Good luck!

73, Tom

-- 
Tom LeClerc, Amateur Radio Station W1TJL
  (past calls WB1CBY, /VE8,XL8,CI8,VO2)
    Yankee Clipper Contest Club (YCCC)

            LeClerc Consulting
           email: w1tjl at arrl.net
          PC/Network Consulting



John Hensley wrote:
> Quads are said to have a low angle of radiation and so
>
> an excellent choice for focusing on a direction.
>
>  
>
> Does this mean they typically need to be higher than
>
> the yagi or beam ???  
>
>  
>
> Of the direction antennas, which can handle the moderate
>
> heigth (30-40') and still be worth using ???
>
>  
>
> Thanks group,
>
>  
>
> John
>
>
>  
>  		 	   		  
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