Just discovered a dinky 20m yagi. made from wooden dowel with an 8ft
square section to connect the two ends, the electrical parts are
simply wire where required.

Being 8ft across the ends and slightly more lengthwise to allow for a
turning radius, it looks like it could fit in my loft. I already have
a lightweight rotator that could handle that. I think it was supposed
to be a caravan tv aerial originally.

To make things even lighter I wondered if I could use pvc conduit with
alloy tape as the elements? Either way I think ist worth a go.

My problem is my rotator, it has twin core cable from its little
remote, so theres no way to determine where Im pointing.
So thats my query, anyone any ideas how I can show something
downstairs, while this is turning in the loft?

Best I could come up with is to use some sort of lighweight
motor/gears arrangement to work a pointer, by splitting the feed cable
in two and using one as a feed for that,perhaps that would work?

1) It stops at one point and must be reversed.
2) It cant turn continuously.
3 Dont know how real ones work at all.
4) No idea if a proper one can be jury rigged ro work here.