Here is a real-time map of mains frequency http://fnetpublic.utk.edu/gradientmap.html
A common way to measure this is to connect a 9 volt AC plug-in power supply to the DCD pin of a serial port and let the PPS system log and time stamp each cycle. You can do it no more hardware than the transformer and any PC-like computer. The computer can bedding other tasks at the same time, like serving files or whatever. On Fri, Nov 15, 2013 at 6:51 PM, Bill Dailey <docdai...@gmail.com> wrote: > I have my picpet faithfully measuring grid frequency and was wondering if > anyone else if the eastern grid has a live measure to compare to? > > 110vac-->5vac-->100ohm-->picpet event---> python average 60 cycles--> log > freq every second. > > Sent from mobile > _______________________________________________ > 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. > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.