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Old August 21st 06, 06:16 AM posted to rec.radio.amateur.antenna
Owen Duffy Owen Duffy is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 168
Default Confidence limits for noise measurement

On Sun, 20 Aug 2006 23:09:39 -0400, "J. Mc Laughlin"
wrote:

Dear Owen and Richard:

....
At Ohio State I did something similar with, probably for the first time,
actual digitizing that went to a computer (punched paper tape!). As I
recall, I did worry about sample rate, but it was much faster than any
changes being observed because a heavy LPF was used. (With the slow
computers in use, I needed not to overdesign the rate too much.) It seems
to me that if you have any reasonably fast filter fall-off, 11 kHz is plenty
fast enough. But then, I am not too sure that I understand your concern and
I am starting to ramble (though I am stone sober).


Mac, I collected my thinking on the subject in an article at
http://www.vk1od.net/fsm/FsmNoiseConfidenceLimits.htm .

Owen
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