Help, Laptop causes FM interference
"amdx"
"Phil Allison"
"Charles"
Switch-mode power supplies are dirty ... lots of harmonic energy. The
interference is both radiated and sent back into the ac mains.
** But they don't usually generate energy in the FM broadcast band (
i.e. 88 - 108 MHz) - that is more likely to be due to the CPU and
associated high speed circuits inside the PC.
Good call Phil,
Maybe I didn't say it clearly, but just plugging the ac cord in and
holding
it near the laptop induces noise on the power line. ( ac cord only, no
switching power supply attached)
** Validates my comment completely.
.... Phil
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