Of course the dual trace scope will do this. But the OP asks for something cheaper. I think you can do the same thing as the scope with a mixer. "Mix" the reference and "unknown" 10Mhz signals then use a low pass filter. The output is the "beat" which if everything is perfect is a DC voltage. But in a real world is a slow moving AC signal. Then visually you can drive an analog volt meter and watch the needle move to not move. You can build a diode ring mixer for cheap or buy an SA612 chip for a few bucks
On Tue, Jul 17, 2012 at 9:18 AM, Azelio Boriani <[email protected]> wrote: > The first step is: use any dual trace oscilloscope and put on channel 1 the > first 10MHz source and on channel 2 the other. Trigger from channel 1 and > see if and at what speed (cycles/second) the other channel walks. > > On Tue, Jul 17, 2012 at 6:09 PM, Chris Hoffman, KG6O <[email protected]>wrote: > >> What advice does anyone have on building/finding cheap [visual?] >> comparison devices to display or detect a timing [lesajo?] from my 10MHz >> sine wave ports? >> >> Further, what timing/health metrics could/should I be aware of and/or >> looking for? >> >> I do not want to spend good money on another oscillicope if I can help it, >> but I do want to see, or at least be remotely aware of clock slips/walks >> and other anomalies. I am thinking about building an embedded system to >> automate monitoring, configuration, and alerts... perhaps using an Arduino. >> >> -CH >> _______________________________________________ >> 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. -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
