On Thu, 7 Aug 2003, Reelf Monsees wrote:
> I'm just looking up the links for 'Cave Radio', maybe I can get some
> idea how to induce a strong enough signal into the cables.
>
We used to have something called a 'Tone Tracer' at work. We used it for
finding which cat5 cable we wanted from a bunch of them going between
buildings. You clamped two wires in the cat5 cable to the tone generator
and went over the other end of the buliding with the receptor which would
resonate with the tone generators' frequency and start to squeal loudly
when it got near it. There was a sensitivity adjuster on the receptor so
you could identify which cable you wanted out of a bunch of 20 or so.

Not sure how much help that is, as I 'spose you need something with
a bit more grunt to it to get through the ground :/

Good luck anyway,

Tim

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