79
New electric cars won’t have AM radio. Rightwingers claim political sabotage (www.theguardian.com)
submitted 3 years ago by to c/politics@kbin.social
50 comments fedilink hide all child comments
 

Conservatives say liberals want to kill talk radio. But there’s plenty else on the AM dial – much of it essential

you are viewing a single comment's thread
view the rest of the comments
[–] 1 point 3 years ago (1 child)

Yeah I have AM in my EV as well, though I can't say I've tried it. Plus if the EMF were the actual reason, wouldn't the alternator in ICEs cause similar interference?

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 1 point 3 years ago

    you will actually hear junk from the alternator in the AM band if the voltage regulator(s)/rectifier goes bad or a ground gets corroded... the lead acid battery provides a nice smoothing function (almost ideal voltage source) since the alternator and engine have a low impedance bond to the negative terminal (system ground). the low frequency spectral emissions (very low harmonic content) from 1 alternator and associated circuitry is a much simpler problem than all the computers, ac inverters (induced high frequency currents running around everywhere), wiring harnesses, etc. that all act as rf generators/antennas.

  • permalink
  • fedilink
  • source
  • parent