It could be tracked if there was RB coverage - need to get a few more outstations on the route :-)
Yes, that's what I meant - the suggestion in the review that "
You can 'track' great-aunt Mabel all the way [from Wick to Sydney],
knowing precisely where she is at any time" doesn't quite square up with what we see on the network coverage map - so far at least.
Still, we know what these advertising chaps are like :-)