At 05:09 AM 3/26/2024, Andy Talbot via time-nuts wrote: >I have a continuous real time display of frequency and time discrepancy, >but it doesn't have logging - something I always intend to do but never get >a round tuit. It's bit of an empirical observation, but I've noticed the I seem to recall several of us on the list logging the US grid line frequency back around 2011 when they proposed relaxing the TEC standards. I'm planning on logging at least line freq (maybe voltage, too) during the upcoming eclipse. I've got a r-pi pico based circuit at home, and some embedded hardware at work (~50 miles south). I sync'd them last night, and they seem to be tracking better than a cycle. If anyone can log the US eastern grid frequency and would like to coordinate an epoch as 0 cycle error, please let me know! -- newell N5TNL