Calculateur antenne cubical moxon rectangle , hexabeam

02/03/2015 17:51

https://www.ve3sqb.com/hamaerials/hexbeam/ affiche page entiere

( Rough drawing of beam construction )

Elements attached...HEX airborne at about 5ft high....!! Resonance all wrong...Swift recalculations...New formula is 520/f...Made the reflector 4% larger

And this is Brian 7Q7BP and Janet 7Q7YL's fine HEX atop their homebrew tower..
What a beautiful QTH...!

Driven Element = 6180/Freq
468/f (wrong formula as it turned out...)
I want to be sure that I have the formula correct 520/f is the driven
> element formula. The Reflector is then made 4% larger than this. Is
> that correct?
Reflector = 6262/Freq
Tip Space (Driven Element) = 102/Freq

Tip Space (Reflector) = 65/Freq
Overall Tip Space = 145/Freq
Answers in inches... 0.24xinches=metres

(A pic to explain the Tip spacing formulae.. )