> Let’s say you use a magnetic pickup loop. > Ok, how about a capacitive pickup.
Bob, Good ideas. And extracting time from 60 Hz would be revenge for all the 60/120 Hz hum we've heard from PA systems our whole lives. Turning a problem into a solution is always satisfying. Brooke -- IIRC some watch or clock company had a patent on calibrating a wristwatch crystal against AC hum. I read it once but can't find it now. Can you hunt for it? While you're searching you'll run across the art of using mains frequency as a forensic tool. We discussed this on the list a while ago. Quick links are: http://www.bbc.co.uk/news/science-environment-20629671 http://en.wikipedia.org/wiki/Electrical_network_frequency_analysis http://www.soundonsound.com/sos/jan10/articles/forensics.htm http://forensicoutreach.com/barely-audible-the-ins-and-outs-of-hum-forensics/ Thanks, /tvb _______________________________________________ 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.
