); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 11/7/2007 13:29:45 Pacific Standard Time, [EMAIL PROTECTED] writes:
>This equates to a short term stability of around 1 part in 10^9 compared to >the 1 part in 10^10 I was expecting from the Allan Deviation specs. There >has been no improvement after running the Min-T for more than a week. >I admit to not fully understanding the relationship between Allan Deviation >and short term frequency stability. So I would be grateful for advice as to >whether there is a simple relationship? >Now I don't know if the stability issue is the Mini-T or the HP Z3801A but >the clue is that if I remove the antenna from the Mini-T the short-term >stability improves by a factor of 10, so I am reasonably confident that the >problem is with the Mini-T. Does anyone have experience with the Mini-T and >what sort of short-term stability one should expect? Hi Rex, welcome to the group! Please excuse my shameless marketing hat that I am putting on now, but in recent months we have had many of our customers complain in a vitriolic manner about the Mini-T to us for exactly the same reason. They switched over to our Fury GPSDO because the Mini-T just didn't work for them. _http://www.jackson-labs.com/products_fury.html_ (http://www.jackson-labs.com/products_fury.html) It would be interesting to find out from other folks what kind of experience they had with the Mini-T. From what I was told, I am not surprised that you are only getting parts in E-09 stability out of that unit. Ok, let's see if we can help you now :) One thing you may want to try is thermally isolating the Mini-T from it's environment by running it in a metal enclosure etc (make sure it won't overheat though). Another thing you may want to try is to compare the indicated position of the Mini-T to the Z3801A position, maybe you have a survey problem? bye, Said ************************************** See what's new at http://www.aol.com _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
