On Wed, May 18, 2005 at 04:15:34AM -0800, ali marjovi enlightened us thusly
> Dear Uwe and Pieter
> The furnace I'm talking about is an Industrial one for
> melting matals in factory with several KW input
> energy.
> As I have seen, the maximum frequency of this kind of
> furnaces is about 700Khz and usually it is much lower.
> Pieter comment about saturation in sheilding sounds
> interesting to me.
> I am going to test a crane remote control beside a
> furnace on monday and I will send you the result of
> experiment.
> Thanks for your comments
> Ali
>
I have worked in a company where many of these induction furnaces were
present on the factory floor, and no ill effects were found except noise
and frequency related issues were unheard of.
We were designing electronic instrumentation for the machines, and we
probably would have found out if problems existed.
Is this one of your thyratron operated, water cooled, ancient induction
furnaces? Why not test for harmonics with an AM radio? 700khz is in the
middle of the 'medium wave' (540 - 1600 Khz) range. and that would
certainly be noticable! 433 MHZ is awfully close to 470Mhz, which is UHF
TV area (470 - 960) Can you pick up UHF TV there?
It may simply be saturating the input to your receiver - If it's big
enough, frequency becomes less relevant. You guys are thinking this is a
polite wave seeking it's numerical place in the spectrum. I am thinking
this is a broadcasting station jamming the everything.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
