Bay 13: Fridges, washing machines, cookers, glass bottles, sheet glass, electrical appliances, televisions, paint, batteries, textiles, engine oil, plasterboard, light bulbs
Mae'n debyg bod lampau halogen, switshis pylu trydanol, seinyddion stereo neu gyfrifiadur, goleuadau bach, setiau teledu a monitorau a gwifrau pŵer AC i gyd yn effeithio ar lwybryddion.