OK, I wasn't paying attention as the info passed by. 'Xactly how is this huge signal introduced to the PC? I remember something about a voltage divider off the hot side of the line, put on an input pin of the PC's com port and then somehow timestamped and put on a data file. Howsat done again? Sorry to be so lame, but I really wasn't paying attention. Don
Chris Albertson > On Sun, Jul 3, 2011 at 8:57 AM, Tom Van Baak <[email protected]> wrote: > >> >> At first this sounds a bit bold. I mean, there's lots of noise on the >> power >> line. Sometimes horrible spikes and all that. Surely, at some point a >> cheap counting circuit is going to be confused. > > What makes is easy are two things > (1) the huge amplitude of the signal to be measured. It's 120 (or > 240) volts. This just completely swaps out anything like EMI. > (2) the frequency is so low that software has no trouble looking at > every cycle in real time > > > Chris Albertson > Redondo Beach, California > > _______________________________________________ > 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. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ 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.
