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From: Tom MacIntyre
Subject: Re: Interference from power lines
X-Newsreader: Forte Free Agent 1.92/32.570
Date: Tue, 07 Jan 2003 22:27:56 GMT
NNTP-Posting-Date: Tue, 07 Jan 2003 18:27:56 AST
On Mon, 6 Jan 2003 22:00:08 -0500, "Charles Perry"
>"daestrom" wrote in message
>> Moving a monitor's orientation or from one side of the room to another
>> have an effect if it were caused by a stray E-M field from outside. I
>> wonder if the fault that happened caused some damage. Were the monitors
>> normally left on (perhaps in power-save mode) over the holiday? If there
>> was some sort of voltage brownout or spike, perhaps they were damaged
>> Is the voltage supply at the wall outlet normal? Perhaps a low voltage
>> (because of the temporary rig that LIPA put in) is enough to run computer
>> and power monitor, but not enough for proper operation? Easy to check...
>This is going to sound odd, but we had a case in Florida once where the
>buildings structural steal had become magnitized during a fault. It was
>driving the monitors in the building (near the affected wall) crazy. Now
>that one was hard to find. It was a DC field of course and did not cause
>waviness as much as it did an odd slanting offset.
>Charles Perry P.E.
It sounds reasonable...I've heard of it due to lightning.
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