From: Breathnach, Proinnsias(Dublin) (breatpro at domain MLE.CO.UK)
Date: Thu 02 Sep 1999 - 12:45:32 IST
> Back to magnetic interference. I find it hard to believe that the dart
> 30m away is causing the interference. Also, I thought the dart used DC.
You've got that right, 1500 volts DC it is :o)
Hmmmm, I've seen the same behaviour in an office in Stillorgan, a
combination of dodgy power supply and RF from RTE seems to be doing it in
that case ...
Try the monitor in another location (someone else's house for example -
where they have a happy CRT)
The other symptoms are harder to explain away, the RF on the radio from the
laptop - there's nothing in the laptop that should resonate at those
frequencies (AFAIK). Especially only on keystrokes. The laptop *shouldn't*
be as affected by EMI as the CRT, no massive magnetic fields to begin with.
The GFX card idea might work, a 2MB S3 won't be the best for a decent
monitor, try borrowing a faster card, you might just be refreshing at the
same (or near enough) freq. as the surrounding magnetic fields, causing
resonance or something ??
Physics ppl on the list will correct any glaring errors in this :o)
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