On Thursday, 29 November 2018 08:20:20 UTC+1, snipped-for-privacy@downunder.com wrote :
d are carefully balanced. Even fairly close to the cables, there is very l ittle residual electric or magnetic field.
ual currents in opposite directions so cancelling external fields.
There are also the PLC systems for smart metering, from 60 kHz to 150 kHz, FSK or OFDM. I could not hear any interference, even sitting next to a smar t meter with a VLF receiver. An then there is "ripple control", pulses of a few hundred Hz on the power line.
Wim