[TenTec] Bazooka antenna.. More than you wanted to know!

Tim Randa tranda at cox.net
Fri Jun 6 14:11:12 EDT 2008


Where is the "*Ten Tec topics only*" police when they're needed ??? 
Maybe they're silent due to "their interest" in the subject. Please 
don't mention you are using a Elecraft to feed that bazooka :-)

KØFL

Steve Hunt wrote:
> Just to be clear: what gives a folded dipole a slightly greater VSWR 
> bandwidth is NOT the "fold" - that simply causes an impedance 
> transformation. It's the presence of the spaced second wire that makes 
> it behave like a "fatter" dipole.
>
> You can get exactly the same bandwidth improvement by including the 
> second wire but omitting the "fold". What I mean by that is: break the 
> second wire at the centre and connect each side to the feedpoint. You'll 
> get the same bandwidth improvement, you wont have to worry about 
> transforming from 300 Ohms to 50Ohms, and the "fatter" dipole will be a 
> slightly better match to 50 Ohms than a thinner dipole.
>
> 73,
> Steve G3TXQ
>
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