[Antennas] 4 element Qubical Quad

Sat Jun 19 14:41:49 EDT 2004

Andy, I have modeled and built such a quad on a 24 foot boom with 
equidistant spacing between the elements. The model was optimized for 
maximum forward gain and a reasonable match to 50 ohms. I took whatever 
F/B I got. The match is skewed toward the low end of the bands because 
I work primarily CW and DX SSB. Consequently, on some wide bands, e.g. 
15M and 10M, the SWR is high at the high end of the SSB portion. If 
you're interested in my dimensions and data, I can e-mail you a Lotus 
tabulation with all the essential information.
73, Joe
VeeAthreePL @ CUIC . CA wrote:
>I am helping friend of mine build his 4 element 5 band (20 to 10) QQ and I
>hope to tune each element seperately?
>What is recommended tuning frequency for reflector and two directors in
>terms of percentage of operating frequency?
>>73 de Andy - VA3PL
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