[Elecraft] OT -RFI question

R. Kevin Stover rkstover at mchsi.com
Wed May 25 18:26:30 EDT 2011


Just re-iterating David's advice.

In my former life I worked in a factory.

My former boss had to get a pacer and was told specifically to stay
away from large magnetic fields. Well, the large, three phase 480V
motors used on large machinery like press brakes, shears, and even
transformers in production welders put off big magnetic fields while
running.

The company had the factory tested for magnetic fields to find out how
close he could safely get. On the big stuff the limit was 20 feet so
that was the limit they set for the entire factory. The company painted
20 foot radius yellow marks on the floor as a reminder for him to stay
back.

I had to toss him out of my welding booth one day because he got too
close.


On Wed, 25 May 2011 20:42:05 +0100
"David Ferrington, M0XDF" <M0XDF at Alphadene.co.uk> wrote:

> not RFI heard about here, but certainly magnetism. I know someone
> with a P/M and they had to be careful about lots of motor type stuff
> and significantly, security scanners in airports
> 
> Suggest you discuss this with your consultant and google it
> 73 de M0XDF
-- 
R. Kevin Stover
AC0H


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