steveeh131047 wrote in
:

....
Thanks for the suggestion - water shouldn't be a problem because this
"band interconnect" TL can be installed within the hexbeam centre post
where it would be protected. One chap has already fabricated a "square
coaxial" version - second photo, he

http://lema.epfl.ch/images/stories/L...exbeam/hexbeam
_HB9MCZ_wb.html

Seeing the construction, I think a pair of rectangular tubes would be
easier to construct, and raise less water retention issues.

I didn't realise that the line section is straight, I had visualised it
taking the shape of one of the spreaders if you understand what I mean.

Anyway, my recommendation would be like in the pic, but using two side by
side rectangular tubes, say 20mm with 4mm spacing.

Owen