[ntp:questions] If the EMI shoe was on the other foot...
David Woolley
david at ex.djwhome.demon.invalid
Sat Oct 10 12:45:20 UTC 2009
Michael Deutschmann wrote:
>
> Would the experts here then want the government to mandate spread
> spectrum be ON, and if so, what sort of modulation to use?
The general view in the amateur radio community is that spread spectrum
computer clocks are a bad thing, because they spread the misery. EMC
standards are compromises and significantly exceed natural background
noise levels, so it is better to knock out a few spot frequencies than
to possibly wipe out a whole amateur band.
If you really wanted to solve the EMC problem, you would legislate for
screening that reduced the noise at about 1 metre to well under the
quiet time natural noise level, would require cases to be tested with
noisy motherboard, and would have severe penalties for sale and use of
case customising kits.
More information about the questions
mailing list