[Antennas] Need help ID'ing 2M beam

[Joe Giacobello]

That is a KLM-13LB.  You can look up the review on it in QST's product 
review archives.  I believe it was reviewed in 1980.  The dual driven 
elements allow the antenna to cover the entire 2M band.  The coil of 
coax is a  1/2-wave 4:1 balun.

I just resurrected one these, but I changed the driven element to a 
regular dipole since I am only interested in the lower end of the 2M 
band.  The model predicted 15 dBi gain in free space.

73, Joe
K2XX

John Luthy wrote:
> Hi folks,  I have a 2M beam that I can't ID,  I will describe the best
> I can .
>
> The boom is about 22 feet long
> It has 13 elements including 2 driven elements and one reflector
> All elements are insulated from the boom
>
> It does not appear to have any means to adj. swr,  however it does
> show very good swr across most of the 2M band
>
> It is feed directly from the coax with no SO239, and it has a coil of
> matching coax connected across the feedpoint, The 2 driven elements
> are arranged like a log periodic.
>
> I hope I have described it in a way that some one might reconize it.
>
> If anyone can offer some info on this antenna I would be very happy,
> I'm kinda at a loss when people ask what antenna I'm using.
>
>
>
> John
>
> N7JL
>
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