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[TCML] emi screening (was Re: LC Circuit)



----- Original Message -----
> Jim,
> 
> You can try, but there will still be significant EMI
> radiated from your streamers, and from the primary
> tank circuit. You would have to enclose the entire TC
> inside a shielded room to really cut down on the
> interference, and even then, effective shielding of
> screened rooms is difficult to achieve.
> 
> There are may previous posts in the archives
> about this topic.

> Dave

> > On a side note, can I wrap my static spark gap in
>> window screening in order to reduce EMIs?

> > Thanks,
> > Jim

     Concur with Dave.  I've debugged screen rooms
     and emi problems: they can be subtle.  Screening
     just the gap can be tried, i'd expect more
     needed to be done.  Two things: once the 'noise'
     is on any wire, it will easily be conducted
     on that wire 'thru' the screen.  Serious
     designs have emi filters at/in the 'wall'.
     Also: if an emi filter is NOT in a 'wall'
     the noise can radiate 'around' the filter.

     When dealing with room size cages, 'sealing'
     edges of 'doors' becomes challenging: lots
     of finger stock.

     I refer here to EMI effects, thats what was
     asked about.  Caging to catch
     arcs/sparks/streamers has different needs, tho
     one design can meet both if done carefully.

     best
      dwp
       (dave, also 8)>>)
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