Comment by mark-r
1 year ago
Interesting that he thinks the clock would be better with a 32kHz crystal than with monitoring the 60Hz power frequency. The power line frequency is very tightly regulated over the long term, and should have an overall better accuracy.
> The power line frequency is very tightly regulated over the long term, and should have an overall better accuracy.
It depends on your country. I've heard of this being the case in Europe, but here in Brazil, as far as I could find there's no "long term regulation" of the power line frequency. Which makes sense to me; it means the power network operator doesn't have to artificially deviate from the correct power line frequency in an attempt to "compensate" for a past deviation.