"NSM" wrote in message news:4MaSd.6667$9a3.1052@edtnps91...

It's normal. Move them further apart.

Plugged into same or adjacent AC circuit?
Doubt if it is Microwave RF field; they are not supposed to leak that much
if properly buttoned up even though there is several hundred watts of
microwave RF floating around inside to cook/heat the food.
So that means interference either magnetic field and/or distortion of the AC
waveform due to the m.wave transformer saturating each half cycle (120 times
a second?). Read somewhere that those m.wave mains transformers which feed
voltage doubling rectifier circuits for up to 5 to 6 Kv Dc for the magnetron
do operate into saturation, waveform not being important.