[time-nuts] Measuring 10 MHz
martyn at ptsyst.com
Thu May 8 04:48:24 EDT 2008
Thanks to all for your replies and suggesting especially Brooke, Bruce and
I am already using the Stanford technique with the 1 kHz output. That's how
I get 2 x 10E-12/sec accuracy.
Using this technique, the accuracy should be 7.9 uHz at 10 MHz (7.9E-13).
But I don't reliably achieve this. I reliably get 20 uHz, sometimes 10 uHz
and I do have resolution to parts in 10E-13, but the last digit isn't
Brooke do you do better than me here with this technique? I see you publish
results with accuracy better than I can achieve, I was wondering how you do
I think the answer from Bruce identifies my problem. I need to take more
care with my measurement techniques
If it was easy, people wouldn't charge $20 - 50k for a box that dies it
Thanks all again
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