Fred (FL) wrote:
I think before we describe what operational artifacts,
roofing filters impact - someone needs to define what
a ROOFING FILTER is? Is it different from the
filters one buys for his IC-706? Why is it called
a ROOFING FILTER? What job is a ROOFING FILTER
supposed to do? What does ROOFING have to do with
anything? Does it have some magical frequency
response curve - I would see via my CAD program?
Is it a elemental RLC type circuit - passive?
In other words - before one discusses the great uses
of a positraction rear end in my chevy - for what
reason was the positraction rear end designed for and
what are its characteristics, in the first place?
Why do I need a roofing filter - I guess that is
what is bothering me ............... :)
Fred, N3CSY
I found this on Wikipedia: http://en.wikipedia.org/wiki/Roofing_filter
How accurate it is, I don't know. Would anyone else care to elaborate?
Nick N2SVT
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