Hi Ok, then the TBolt is running 100 to 200 ns for a tau of 12 seconds to 280K seconds.
Without looking at the raw data it's tough to see what's going on. The numbers are 5 to 10X worse than I would have expected them to be. One of the monitor programs (like Lady Heather) might be useful in diagnosing any issues you may have. Bob On Jun 11, 2010, at 9:29 AM, Peter Vince wrote: > HI Bob, > > 10 nanoseconds at the bottom, up to 10 microseconds at the top, > in three logarithmic sections. > > Donal: Is the time-constant at its default of 100 seconds, and was the > above plot taken shortly after turning it on? There has been lots of > talk on here about tweaking the performance. Increasing the > time-constant to between 500 and 1000 seconds should help, as will > stabilising the environmental temperature. Let it run for a few > weeks, and the oscillator will settle down, and you should get some > better results. > > TTFN, > > Peter > > > On 11 June 2010 14:20, Bob Camp <li...@rtty.us> wrote: >> Hi >> >> The vertical axis on the plot is pretty tough to read. What is the scale? >> >> Bob >> >> On Jun 11, 2010, at 8:43 AM, Donal G wrote: >> >>> Hi Guys, >>> >>> I bought a Thunderbolt device recently. I have done some >>> 10Mhz frequency tests in comparison to a Cesium reference. >>> Attached is MTIE plot. Have any of you done similar tests? any comment on >>> my results?, is this normal operation when locked to the GPS? I was >>> expecting better results that this! >>> >>> Thanks >>> Donal >>> <TBOLT -MTIE-small.JPG>_______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.