The other issue with the Optibeam designs is that they lack enough
"open space" in the center to effective sidemount most antennas.
I *believe* the original F12 5BA could be side mounted (and stacked)
unlike the Optibeam.
73,
... Joe, W4TV
On 2018-07-25 1:29 PM, Paul Christensen wrote:
## I spoke with Ken, W3JK a while back on the telephone, and yes,
indeed, he does
make a new and improved version of the oem F12 5BA
When someone has the JK model number, please pass along the info. I don't
see it listed on their website.
Like the Optibeam OB16-5, it sounds like the JK may be an alternative to a 4
el. SteppIR Yagi, but with the ability to simultaneously multiplex onto one
antenna. However, to get comparable performance to a SteppIR on a 10m boom,
Optibeam uses 16 elements instead of 4. That's a lot of aluminum to keep
straight and in the air during major storms. One design dies by lightning,
controller, and tape motor failure while the other dies by aluminum element
breakage. Truly, there's no free lunch.
Paul, W9AC
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