What about only changing the plates with normal materials like YaComWood's do? I dont know if there would be any improvment?
Adi ----- Original Message ----- From: "Stephen W. Kercel" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, March 20, 2005 10:32 PM Subject: Re: [Elecraft] Re: magnetic fields and phase noise? > I've seen several mentions of mu metal in this discussion. I offer a few > thoughts for what they are worth. > > Some years back, when I worked in the Electromagnetic Compatibility Group > at Oak Ridge National Laboratory, we occasionally used mu-metal. The idea > is that it directly suppresses magnetic field independent of electric > field, and is thus supposed to be an effective shield for near-field > situations where the constrained relationship between the electric and > magnetic field breaks down. (Magnetic shielding of propagating waves is not > a problem; kill off the electric field, and the magnetic field vanishes for > free.) > > Mu metal is expensive, difficult to find, hard to work with if you can find > it, and if subjected to mechanical shock, it can lose its mu-ness. > > Personally, I would only use it as a last desperate measure. > > 73, > > Steve Kercel > AA4AK > > > > At 01:54 PM 3/20/2005 -0500, you wrote: > >Earl W Cunningham wrote: > > > >>It has been suggested that mu-metal shielding might alleviate the > >>problem. I'm considering making mu-metal bottom and side covers for my > >>K2. > > > >If I were having that problem, I'd be thinking about shielding the > >*source*...because it would likely affect other equipment in my shack. > > > > 73 de Maggie K3XS > > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
