Historical bit of news ... 

I asked a similar question a couple of years ago here 
and was referred to a gentleman who was in the 
writing of the original FCC limits.  Can't remember 
the man's name but he's a professor at Univ. Penn. 
if I remember correctly. 

Anywho, the answer I got back from him was that 
the limits were empirically derived in reference to 
interfering with television signals.  So, the worst 
case (which turned out to be Class B) was a tv 
back to back across a wall from another device 
in an apartment complex. 

Regards, Doug McKean 


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