[RFI] EMI & EMC Conducted Noise Meaning?

[Martin, AA6E]

Doc,
I know what you mean.  It is hard to turn an EMC standard into reality
in the ham shack.  Industrial-type power supplies are not normally
sold to consumers and so probably are never evaluated to the home
standard.  The spec, of course, is an upper limit, so your particular
device may be much better at frequencies of interest.

So it's easy to find out what "Class A" is, but it's hard to know if a
particular device is going to be trouble for you.  I want equipment
that is much better than class A or B at my operating frequency.

73 Martin AA6E

On 1/6/06, kd4e <kd4e at verizon.net> wrote:
> Looked at both sites (I am an aggressive Google user)
> and as is often the case the answer is buried out
> there and I may spend hours looking and still not
> find the technically relevant answer I seek.
>
> Those are good sites worth saving but do not really
> answer the question I intended to ask, or at least
> I did not recognize the answer there!  ;-)
>
> Allow me to rephrase more precisely:
>
> What does that specific phrase mean to a consumer for
> AM-BC, FM-BC and TV reception and what does it mean to
> a SWL, and what does it mean to a Ham using HF, VHF,
> and UHF, please?
>
> The implication is that it meets the minimal business
> threshold for freedom from interference 130KHz - 30MHz
> but how to extrapolate that to real-world Ham experiences
> is rarely a matter of specs but more a matter of reports.
>
> I sometimes like weak signal work and adding RFI merely
> because I failed to ask the right questions is bad.
>
>
> > --> http://www.analogzone.com/pwrt0628.pdf
> >   http://www.jmkfilters.com/faq.htm  and much more.
> >
> > 73, Martin AA6E
> >
> > On 1/6/06, kd4e <kd4e at verizon.net> wrote:
> >> Am looking at a multiple outlet nominal 24VDC variable power supply
> >> (Factory Configurable 1.8 - 52VDC 80A, 80A, 14A, 40A, 40A)
> >>
> >> On the PRF Data Sheet is states:
> >>
> >> EMI & EMC Conducted Noise EN55022 CLASS A 130KHz - 30MHz
> >>
> >> What does that mean, please?
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> A blessed New Year to all!
> Thanks! & 73, doc kd4e
>
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martin.ewing at gmail.com
http://blog.aa6e.net