>She's now paying more attention to where the tone is. When
>she takes the dog for a walk down to the beach (she's on the
>outskirts of Brawns Bay, Alan, at the fringe of suburbia),

Do you mean Browns Bay, on the North Shore ?

>the tone disappears when she goes over a ridge (ie out of sight
>of the tower) and reappears on the way back home
>
>It does seem to be present all around the house, inside and
>out. Volume seems not to change with listening position
>
>I've still to do some work with her, eg testing other towers,
>trying to get some sort of recording and so on
>
>If/when we ever find out what it is, y'all be the first to know

Well, at least she is apparently attempting to be scientifically observant
about the problem. It does sound like some form of interaction between the
recently added microwave dishes and possibly some dental work. Maybe a check
for cavities is in order ;)))))

But it does also suggest something like an experiment one of the TV stations
did here with a mobile cellphone mast.

They had a bunch of people go to a weekend retreat type place, well away
from any cell phone masts, and had a mobile base station come and park
outside. Even with the base station turned off some of them reported
"effects" from it. The base station was turned on and off at random
intervals during the weekend, and an attempt made at correlation of
observations of effects reported by the subjects. At the end of it there was
no correlation.

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