[time-nuts] pn3048 software
djl at montana.com
Wed Nov 5 01:48:12 EST 2014
Hi Ivan: I agree about the usefulness of noise sources. Also good with my
spectrum analyzer for filters, amps, etc.
But I haven't sen any cheap ones on ebay at least, HP's and equivalents are
around $1000 or so. Am I looking for the right thing?
> Does anyone else have the pn3048 software running on a PC-gpib system?
> It has been a number of years since I have used a HP3048A-HP11848A system.
> I have two HP11848A test sets and a spare PC or two with NI GPIB cards.
> It looks like this will be much easier to use than the old HP 9236 computer.
> What trials and tribulations have people had in setting up a system with
> that software?
> One of the things that can be done is determining the noise floor of the
> To determine the noise floor I have used a noise generator with a
> programmable step attenuator through a resistive combiner with the
> oscillator under test output.
> Increase the attenuation until the noise source on-off level is
> This is an easy way to measure the system noise floor.
> Noise sources are usually cheap on ebay because most people do not know
> how to use them.
> As an RF designer they are easy to use for testing receivers.
> Ivan Cousins
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"The power of accurate observation is commonly called cynicism by those who
have not got it."
-George Bernard Shaw
Dr. Don Latham AJ7LL
Six Mile Systems LLC
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Huson, MT, 59846
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