[time-nuts] Measuring 10 MHz accurately.
SAIDJACK at aol.com
SAIDJACK at aol.com
Wed May 7 16:51:37 EDT 2008
Hi Martyn,
you may be able to use a Wavecrest DTS-2070 or better DTS-2075 Time Interval
Analyzer for this.
It has up to 40K samples/second capture capability, with +/-25ps single-shot
accuracy, <<10ps RMS noise, and 800 Femtoseconds resolution.
If you can capture the data via GPIB, you should be able to calculate better
than 1E-012 per second with the massive over-sampling the unit can do.
See:
_http://www.wavecrest.com/technical/pdf/2079003A.pdf_
(http://www.wavecrest.com/technical/pdf/2079003A.pdf)
These used to cost $60K+, now you can get them for $500 on Ebay.
bye,
Said
In a message dated 5/7/2008 09:53:29 Pacific Daylight Time,
martyn at ptsyst.com writes:
I really need to measure 10 MHz to an accuracy of 1 part in 10E-13 / second
(ignoring the accuracy of my workshop standard). I've tried multiplying the
10 MHz to the GHz frequencies, but never manage to improve on the technique
I mention in my first question.
Any ideas for a relatively cheap way of doing this. I actually represent a
company that can measure to parts in 10E-15 in one second, but their boxes
costs $50k.
Best Regards
Martyn
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