Quote:
Originally Posted by greenwood
Hi Guys
We had a similar problem, and found that by putting a filter in the mains(AC) supply it really improved things. It turned out we had a lot of RF noise on the AC becuase the Air Con unit on the roof hadn't been earthed properly!!!!!!
Since the earth went in its been fine still leave the filter in though.
Regards
Tony
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just a line filter or full UPS?