Quote:
Originally Posted by Lee BURTON
The noise i hear is like someone said earlier, like a diesel truck outside, or a machine digging underground, its a real sub bass pulse that i feel through my body.
I said before 2:00 GMT i'm in bed and have felt this for a while now, the green box thing doesn't suit my own and friends around where i live, its more deeper/lower and pulses.
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The ultrasonic cat deterrents are high pitched pulses. We're not supposed to hear them but we do (from personal experience).
I'm sure that I read somewhere about something that gives low frequency pulses whilst I was researching the cat deterrants, but I can't remember what or where.
It is very possible that it could have a mundane explanation like the high pitched noises.