[TowerTalk] Bazooka antenna

[Steve Hunt]

Tom,

Wanted signals are EM waves; noise signals are also EM waves. I wonder 
what characteristic of a Double Bazooka might allow it to distinguish 
wanted EM waves from unwanted ones in a way that a conventional dipole 
can't. As you might gather, I'm sceptical :)

Measurements and modelling confirm that it DOES have a slightly wider 
VSWR bandwidth than a wire dipole - partly because of the loss in the 
stubs, and partly because it's constructed from "fatter" conductors. You 
could probably achieve the same bandwidth enhancement, without the 
mechanical complexity, by putting a resistor in parallel with the 
feedpoint of a conventional dipole.

73,
Steve G3TXQ

On 08/11/2011 05:54, Tom Osborne wrote:
> Hi All
>
> I've been looking at some info on the Double Bazooka antenna.  I know the
> 'wide band' aspect has been debunked, but in looking at the design, would it
> be a quieter antenna?
>
> I see that low band loops are shielded on the outside and have an opening at
> the top.  Wouldn't the bazooka kinda do the same thing, beings the outside
> of the antenna is actually shielded?  73
>
> Tom W7WHY
>
>
>
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