[time-nuts] 60 Hz measurement party
Alberto di Bene
dibene at usa.net
Sun Jun 26 15:34:20 UTC 2011
A simple way to measure the line frequency (up to a given precision...)
is to watch on a waterfall program to one of its harmonics.
In the following picture you can see the 53rd harmonic of the 50 Hz line
frequency in Italy. It was captured by just connecting a random length
of wire to the line input of a sound card, thus capturing the ambient hum.
More sophisticated ways can be used, of course.... :-)
73 Alberto I2PHD
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