Comment Re:The year is 3099- (Score 1) 269
As an owner of an EV who, on longer drives, will listen to AM radio for traffic updates, I ask you "What the fuck are you talking about?" Hell the station I listen to has both AM and FM simulcast and the AM version comes in clearer than the FM as long as I'm not under a bridge.
EV inverter switching frequency tops out at 10KHz. AM radio broadcasts are all above 500KHz. There is no issue here and anyone who is saying it's so bad they want to abandon AM radios in electric vehicles is flat out lying.
Maybe you're thinking of brushed motors where the commutator sparks and generated broad spectrum EMF? That's a real thing, but not applicable to EVs. =Smidge=
The inverter might switch at 10kHz but that's not what matters. What matters is the rise time and fall time of the current being switched by the inverter, probably in the region of several tens of nanoseconds. These harmonics will extend to 40-50MHz.