Hi I believe that you have a problem with that probe. A broken ground is one possibility, a significant mismatch between the probe output and the scope input is another possibility.
Bob On Apr 17, 2014, at 1:32 AM, Claude Fender <lab...@yahoo.fr> wrote: > Hello List, > I've recently bought a Quartzlock 10A R (rubidium). Does anyone has > experience with this unit? > > My > unit has two outputs with no options. The problem is the shape of the > waveform (see attachments), it's the same shape for the two outputs. > When I > connect an output directly to the oscilloscope, the shape is nearly > "squared" and when I use a probe, the shape is nearly "sine" ! > > When I send a 10 MHz signal from a generator, the waveform is a clean sine > with or whithout the probe. > > So what signal should I except from this rubidium ? Or most probably, what is > wrong with my use of the oscilloscope ? > (The frequency is ok by the way (+2E-10) and I didn't open the case yet) > > Thanks for any advice > > Claude > <10AR-sm.jpg><noprobe.gif><withprobe.gif>_______________________________________________ > 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.
