Call me crazy but I wonder if my accurate relative period of time could be derived from the 230VAC 50Hz mains supply over here. Now, before you yell at me, consider this, I have a couple of mains driven clocks in the house and only seem to need to change the time on them when we go from Standard Time to Daylight Saving Time. Agreed, the instantaneous frequency of the mains is not always spot on but the long term average seems to be kept pretty accurate or we would all have to keep changing our mains timed clocks. If I knew the standard deviation of the mains, I could probably calculate the period of time I'd have to gate my breadboard "frequency counter" to achieve a certain accuracy.
73, Steve -- Steve Rooke - ZL3TUV & G8KVD Omnium finis imminet _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
