Hi All of these GPSDO boxes have enough spurs to bother something like a direct multiply microwave radio. Most of them are plenty clean enough to drive a counter standard input.
Bob > On Nov 4, 2014, at 6:23 AM, GandalfG8--- via time-nuts <[email protected]> > wrote: > > Hi Bob, > > Thanks for that, I wasn't expecting too much from the 10MHz, thinking of it > as probably a quick and dirty reference for portable test gear, but maybe > wasn't expecting it to be quite that bad either:-) > > 15MHz I would have expected to be reasonable, and my goal is still to > extract 5 MHz directly from the oscillator, buffered as necessary but with > as > little degradation as possible, but for now I've had to content myself with > live monitoring of the plots on a couple of Pendulum counters, what with > all being as chaotic as usual round here and far too much test gear stacked > up in piles and nowhere near the bench:-) > > You've whetted my appetite though so will try and stretch some cables later > and take a closer look at the outputs. > > Regards > > Nigel > GM8PZR > > > > In a message dated 03/11/2014 23:55:52 GMT Standard Time, [email protected] > writes: > > Hi > > I got a chance to look at phase noise today. I’ll try to post the plots > later. Quick summary: > > 10 MHz - ugly. Lots of spurs, many of them close in. Poor phase noise > floor. > > 15 MHz - pretty good. Noise floor is not as good as a TBolt (by 5 to 15 > db). Far fewer spurs than the 10 MHz, fewer spurs than the TBolts I’ve > looked > at. > > ADEV on a short run looks better than an un-tuned TBolt. I’ll need a much > longer run to see what it’s really doing. > > Bob > >> On Nov 3, 2014, at 1:20 PM, GandalfG8--- via time-nuts > <[email protected]> wrote: >> >> Ah, that's interesting, perhaps it wasn't me after all then. >> >> Did you have the same flashing ON light symptoms? >> >> Regards >> >> Nigel >> GM8PZR >> >> >> In a message dated 03/11/2014 17:56:56 GMT Standard Time, >> [email protected] writes: >> >> >>> It turns out this is what happens if you switch the "Output Level" from > >> 17 >>> to 23, obviously an advisory indication to draw attention to the higher >>> output. Switching it back reduces the level, as expected, and returns > the >>> LED function to normal. Phew:-) >> >>> I can't remember switching it but don't suppose it arrived like that > so >>> guess I must have done. >> >> My pair came with Ref-0 set at 17 and Ref-1 at 23. >> >> >> -- >> These are my opinions. I hate spam. >> >> >> >> >> _______________________________________________ >> 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. > > _______________________________________________ > 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. _______________________________________________ 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.
