[Talk-GB] mapping tunnels

Nick Folwell nick.folwell2 at btinternet.com
Fri Sep 28 13:01:04 BST 2007

I have no idea if this would work, but...

Some TomToms have something called ASN - "Assisted Satellite Navigation". It
basically keeps you navigating even if it loses the signal, eg in a tunnel.
I think it uses tilt switches or similar to work out which way you're going.

And you can get the Event_Logger software for TomTom, here:

Now if you went through the tunnel with ASN turned on, and Event_Logger
logging - would it log where TomTom "thinks" you are?


Nick Folwell
nick.folwell at btinternet.com

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