[Antennas] Quad Question

Tom wb1cby at gmail.com
Wed Dec 16 12:22:53 EST 2009


According to LB Cebik, they should be opened.  Practically he said to 
feed them with a 1/4 wavelength (electrical) of coax and open th end 
(bot braid and center conductor disconnected) - leaving the braid 
grounded grounds the loop.  I built a 6 band version on a Gem Quad 
Spyder frame and it works great! Used DPDT relays for each band and 
wired them to open both sides of the coax when de-energized.

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


On 12/16/2009 12:09 PM, WX5L wrote:
> Hello,
>
>
>
> Is it best to have unused loops of a 5 band quad grounded OR
> isolated(floating) through an antenna switch.
>
>
>
> Thanks,
>
>
>
> Randy
>
> WX5L
>
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