[linux-audio-user] OT: Cell Phone RFI!
Joseph M. Gaffney
cucullin at wtfisthat.net
Mon Dec 18 11:30:08 EST 2006
Alot of this is due to grounding methods. Interestingly, a test recently
conducted showed that having a ground (one that literally went into the
ground) horrendously increased rf interference. They began to look at why,
and saw that most of the pro audio devices had a grounding method that was
inadequate - mics being grounded to the shielding as they should, but also
jumped across the circuit boards - this being the main source of issue.
I forget who did the study, but there is a whitepaper out there. I don't have
it at home, but I do have it at work - I will be back there tomorrow (home
sick) and will post up a link to it then. Lots of info is packed in there.
As a note, the one interesting thing that came from this was a line of mics
that were "blackberry-proof". I'll have to remember who made those, it may
be of interest as well.
-Joseph M. Gaffney
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