If the "big digital clock" doesn't display the time with fractional-second precision, then it only needs to be updated at 1 Hz, which can be done with the 1 PPS directly. Consider replacing the 32 kHz crystal, divider chain, and microprocessor with a new microcontroller that takes 1 Hz input and drives the display in the same way.
For an extra bonus, use a microcontroller with a serial port, and connect the GPS receiver serial output to the serial port on the micro. Then you can decode the serial data stream from the GPS, and automatically set the clock to the correct time after a power failure - something the original clock could not do. As a double bonus, make the clock display leap seconds correctly when they happen. - Dave On Tue, Oct 18, 2016 at 10:03 PM, Lee - N2LEE via time-nuts < time-nuts@febo.com> wrote: > > 1. Does anyone know of a device that will take a 1PPS GPS timing signal > and generate a 32.768 kHz sine wave output ? > I have big digital clock that uses an 8 bit micro processor and an > external 32.768 crystal. Obviously the external crystal is > awful for accuracy. > > > _______________________________________________ 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.