On 9/1/2011 12:01 PM, 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?

The beauty of usenet is it allows all sorts of characters to post.
Typically, in response a simple question it turns into some insane
"How esoteric and complicated can I make this?" contest.

So, with that thought in mind....

You have a rotor, you have two wires between your radio shack and
the rotor.

Since everyone seems to think that broadband over power lines is
such a "Good thing(tm)" here's a solution to your problem.

Use your two wire feeder to supply a fixed AC voltage to run the
controllers and the rotator.

Feed a digital control signal up the power line to tell the rotor
which way to turn.

Feed a digital signal back down the power line with the telemetry
to feed a display of which way the rotor is pointing.

Obviously since you have a bi-direction data stream on the power
line to the rotor, you can get as complicated as you want with the
amount of extraneous details. Such as slow start, brake clutch on
and off.

In fact, since you're already in the roof, add a weather station
outside and feed that data back down too. ;-)

Jeff-1.0
wa6fwi


--
"Everything from Crackers to Coffins"