On Thu, 01 Sep 2011 18:01:54 +0100, Sniff ma Diff!
wrote:

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?

Sure, salvage some components out of some dead mice or printers and come up with
an optical positioning indicator using the salvaged IR emitters and receivers. A
simple cardboard disk with slot(s) that will let you know when it is in certain
positions. The more you use, the more accurate the positioning. You could make
it simple, or more complicated by encoding the signals. You didn't say you
couldn't run new wires, just asking if you could send a control signal down one
of the wires already there, so I hope this isn't a complete waste.

Bob, KB2ZGN