[time-nuts] Home made GPS disciplined atomic clock
EWKehren at aol.com
EWKehren at aol.com
Wed Jan 28 11:30:19 UTC 2009
Esa, the answer to your problem is, as I said before, to clean up the
signal, use a high quality oscillator locked to your system with a PLL that has
the appropriate time constant. The time constant will smooth out the jumps you
see right now. The question is only which oscillator. A Wenzel was suggested
but in my opinion it is not what you need. I have used a Wenzel because I
wanted the low phase noise when multiplied to 10 Ghz. You would pay for something
you do not need. I have not seen Allan variance data on them. There are
plenty of oscillators out there at a reasonable price starting with the HP 10544.
Yes, the 10544 will clean up your present setup and will be at least a 10X
improvement over the LPRO solution. But the most widely available unit is the
HP 10811 which will do a great job. Depending on how much you want to spend
the FTS 1200, 1000 or 2000 are an option.
Bert WB5MZJ
**************A Good Credit Score is 700 or Above. See yours in just 2 easy
steps!
(http://pr.atwola.com/promoclk/100000075x1215855013x1201028747/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=De
cemailfooterNO62)
More information about the Time-nuts_lists.febo.com
mailing list