[time-nuts] Re: measuring the mains frequency

[Doug H]

There is an intriguing digital GPS clock 
atTindie.com/products/nsayer/gps-clock/

Made by Geppetto Electronics <https://www.tindie.com/stores/nsayer/>, it 
receives and displays GPS time and claims 200 us accuracy.

Put this clock next to a common AC-powered digital clock and watch the 
difference

wander around over days and weeks.It's not time-nuts precision, but it 
is interesting.

Doug Hutton, W5JUV
Lubbock