wrote in message
oups.com...

The problem is: how to measure it? You can't just stick a counter
on it, because it's pulsed. I'm thinking to use an RF oscillator and
a mixer going to an audio amp - when the oscillator is close enough to
the remote, I'll hear it heterodyne. I don't think it needs to be
super accurate. Or maybe a scope with an XY input for lissajous
figures?

Use a receiver connected to a scope? How much is an extra gate receiver?
I've seen items like this offered in "Ciarcia's Circuit Cellar".

N