Hmph!... Spread Spectrum clocks do *NOT* make the shielding any easier, it's just a fudge for the accountants who won't fund a proper job in the first place. It only "fools" the QP detector in a measuring receiver into showing a lower value, it does not "Fix" the problem.
And I thought I was the only person in the world who noticed that bit of subterfuge. It actually makes EMI *worse*, artificially raising the test limit by smearing the signal to get past the FCC's spectrum analyzer-defined peak limit.
The Part 15 limits for such things as the FM broadcast band, on the other hand, are defined by field strength. That's the only cheat-proof way to specify emitter power testing.
-- --David Forbes, Tucson, AZ http://www.cathodecorner.com/ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
