I'm not sure what all the flak is about.
I've always tested equipment in the maximized
configuration that could possibly used by a
customer. At a former company, yes we had a
rack of 16 modules. "One" configuration of
innumerably many possible permutations *might be*
all 16 modules of the module.
What's the rationality of then testing the rack
with just one lone module?
This makes absolutely no sense to me.
If the system configuration could allow for the
customer to use a fully populated rack, then that's
what you test. Now if you can justify that you've
got some exotic type of module that's going to break
the bank and you can demonstrate that by adding
beyond a certain number of modules, it now longer
makes any effect on emissions, then I guess you go
with that. But, and I'm assuming, a lab would want
you to be able to demonstrate that.
The rationality with the -6dB below limit value?
That's a little more complicated to explain.
Regards, Doug McKean
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