[TowerTalk] Optibeam OB4-40

[David Gilbert]

You may get a couple of answers from this reflector, but I think you'd 
have more luck by just doing a Google search for "Optibeam" and "OB4-40" 
and then contacting the folks who show up in the results.  There are 
several of them, including some contest stations.

For what it may be worth, I own an OB2-40 as well as an OB16-3, and the 
gain and SWR plots for both antennas match almost identically the 
Optibeam published information (you can get the EZNEC output plots from 
DF2BO for the asking).  I would expect the OB4-40 plots to be similarly 
dependable.

I also have some closeup pictures of the construction details for the 
OB2-40 and O16-3 on my website at AB7E.com, and the OB4-40 uses pretty 
much the same hardware.

73,
Dave   AB7E




On 5/17/2010 7:14 PM, Dick Hanson wrote:
> Hello..
>
> If anyone has direct experience with the above ant, I would surely
> appreciate hearing about it off list.
>
> Thank you.
>
> 73
>
> Dick, K5AND
>
> Austin, TX
>
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