Re: Strange noise from alarm clock

From: Ken Taylor (ken123_at_xtra.co.nz)
Date: 07/29/04 

Date: Fri, 30 Jul 2004 08:26:03 +1200

"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:0s1Oc.197735$g%2.9454703@phobos.telenet-ops.be...
>
> "Ken Taylor" <ken123@xtra.co.nz> wrote in message
> news:2mr25tFplpt3U2@uni-berlin.de...
> > "kimble" <me@privacy.net> wrote in message
> > news:m2o8ec.035.ln@195.149.5.82...
> > > Edwin Davidson wrote:
> > >
> > > > Could this be electrical noise? My UPS plugged into the other wall
> > > > doesn't kick in at these times. And it's every 45 minutes after the
> > > > hour. It's not real loud, but it is noticable. Doesn't sound
> > > > anything like the actual alarm, and the radio is NOT on.
> > > >
> > > > Ideas?
> > >
> > > Cellphone nearby?
> > >
> > >
> > > kim.
> >
> > Or an airport.
>
> Unlikely to be radar (only once an hour).
>
> How about a water works, water pumping station or storage facility
> (telemetry).
>
I was thinking beacon rather than radar, but you're still right, I was
forgetting the time constraint. Nearby telemetry for industrial gear is a
good candidate, as is signaling on the mains for control of off-peak water
heating, or similar control.

Ken

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