nuckollsr(at)cox.net
Guest
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 Posted: Fri Sep 15, 2006 12:32 pm Post subject: segregation of wires . . . |
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| Quote: | Comments/Questions: Bob, Via Matronics, your class and your book; I've
picked up that ALL antennas can be routed together and power lines can be
routed together. I plan to do so in my RV8, with separate audio routing
(ICM, etc). Does the antenna rule include FM for radio? I couldn't find
this anywhere, but assume this is the case - any notable exceptions to
other antennas?
Also, on Matronics site, I found a discussion on ground loop from CD
players, etc (I will have DVD/CD and FM radio), both checked out per
Matronics info to have case grounding. Isolating the FM is not too bad,
but the DVD/CD could be another matter. Would like your thoughts on how
much work I should put into this now vs. seeing if I have a problem - but
more difficult to do later.
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These radios typically ground to the instrument panel.
Bring their outputs out on wires with shields grounded
at the source end only and I think they'll be fine . . .
Is there some experience with ground loop induced
noise that was mitigated by insulating the radio
chassis? I'd like to have a link to that discussion
if you can provide it.
I've never seen value added by providing separate
wiring paths for systems EXCEPT where at least two
of those systems were poorly designed such that one
becomes an antagonist to the other.
It takes two to tango, it takes two to have a noise
problem. In terms of installation techniques, ground
loops are the strongest potential couplers with
vulnerability to radio frequency running a close
tie with susceptibility to bus noises for second
place.
If systems performing to the industry standard
practices, there is no value in segregating any
wires into groups.
Bob . . .
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( Experience and common sense cannot be )
( replaced with policy and procedures. )
( R. L. Nuckolls III )
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