My TDS210 has an extremely stable display, even at the max sweep speed. Of course, the vertical amplifier has the noise you would expect from a broad band amplifier, and if the signal is too low, that noise will contribute to some jitter, but 200mV at 10MHz will show a very stable display on my scope.
Try to get another method for confirmation, like a ham or broadcast receiver that can tune 10 or 20 MHz Didier KO4BB Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: Azelio Boriani <[email protected]> Sender: [email protected] Date: Thu, 29 Dec 2011 09:33:14 To: Discussion of precise time and frequency measurement<[email protected]> Reply-To: Discussion of precise time and frequency measurement <[email protected]> Subject: Re: [time-nuts] FE-5680A Results so far Artifacts from the TDS210, not from the Rb. On Thu, Dec 29, 2011 at 8:14 AM, mike cook <[email protected]> wrote: > Hi, > Just got my cheapo 5680A. It was accompanied by a little teddy bear > clutching a L7805CV ! > > Got a couple of questions. > > 1) What is the expected 10MHz peak to peak voltage. FEI doc seems to > indicate 0,5V but I am getting only 200mv. > 2) What is the sensitivity to 15V input level. I am only measuring 14,722 > (stable) on Pin1. > 3) Could this low input voltage affect output voltage? > > The box locks after a couple of minutes but my TDS 210 is showing a very > jittery ( 9,98-10,02 MHz ) but well formed sine wave for 8 hours of being > powered on. Could this also be an artefact of low main power? > > regards, > Mike > > > ______________________________**_________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<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.
