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MW hum - higher frequencies only - 200Hz
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26th Jun 2021, 4:17 pm
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Skywave
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Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
Re: MW hum - higher frequencies only - 200Hz
Hmm, yes: a 3-phase motor could well be the source. Bearing in mind all that electrical machinery they are using, does cause me wonder if they have power factor correction installed - which, of course, may be quite irrelevant!
Al.
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