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[aprssig] What a diffeence an antenna makes

Stephen H. Smith wa8lmf2 at aol.com
Mon Oct 31 17:43:51 UTC 2005


archer at eskimo.com wrote:

>On Mon, 31 Oct 2005, Dave Baxter wrote:
>
>  
>
> .
>
>
>A turnstile might be ideal if you can physically fit it on there.
>If not, shouldn't a 1/2 wave positioned vertically perform slightly
>better than a 1/4 wave antenna on a car?
>
>  
>
NO.       A half-wave's maximum radiation lobe is straight out toward 
the horizon (perpendicular to the wire) while a quarter wave's maximum 
lobe is about 15-20 degrees above the horizon,  actually making it 
better for things that are in the air rather than on the ground. 



Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
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