[time-nuts] Question concerning failure and value of HP 5371A
Arnold.Tibus at gmx.de
Sun Oct 16 15:09:15 EDT 2005
I am very much interested on your works and results, it sounds to
be a interesting way, nice project. Unfortunately I do understand
nothing of these new devices.
I would like to keep in touch with you, thank you.
about the rule of thumbs:
8 is quite a good number.
It depends how precise one want to reflect the original shape,
I used the similar rule quite close, the number of 10, knowing that
this will already reduce the rise time a bit. For best results demonstrating
measurement I used sometimes the factor of 20 at lower data rates,
which of course ends up at higher rates far in the microwave range -
with all the involved problems. For critical tasks I had a very nice
4 chanel scope with a total bw of 3 GHz available.
But a lot of times it can even sufficient to work with the factor of 5,
accepting the shape modification but with the advantage having less
On Sun, 16 Oct 2005 19:52:47 +0200, Poul-Henning Kamp wrote:
>In message <188.8.131.52.1.20051016103058.00ba7350 at pop.fast.net>, buehl writes:
>>Even at the 200 MHz rate, the very high
>>transition time of the input pulses required that the circuit be "clean" at
>It used to be a rule of thumb that analog circuits should have 8
>times the bandwidth of any squarewave to be handled such that the
>3rd, 5th and 7th overtones were intact.
>Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
>phk at FreeBSD.ORG | TCP/IP since RFC 956
>FreeBSD committer | BSD since 4.3-tahoe
>Never attribute to malice what can adequately be explained by incompetence.
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