"Frank Gilliland" wrote in message
...
Okay, I've been looking for a Super-Scanner for a while and can't find
one for sale. So I decided to make my own. The manual has enough info
to build a pretty close copy except for one detail: the boom length.
What should the spacing be when one dipole is the radiator and the
other two are reflectors?

And would there be any advantage to adding a little reactance
(electrical length) to a dipole when it's switched in as a reflector?



If you look around in some technical manuals, you'll need to understand the
wavelength formula to build it correctly.
There is a specific formula for determining how the elements are cut and
spaced.

If you've got a good ham shack around, go talk to them about it.
Or basically follow a 10 meter design. It's close, but it should work.

What you have is a basic yagi antenna.
http://www.signalengineering.com/ult...ment_yagi.html

Scroll to the bottom of the page for details on lengths required.

Have fun.