> […] means they would have to invest more engineering in to filtering that noise out. Wouldn't this mostly be a one-time charge, and then just cookie-cutter t

> […] means they would have to invest more engineering in to filtering that noise out. Wouldn't this mostly be a one-time charge, and then just cookie-cutter the solution going forward? (I say this as someone living in Toronto, Canada, where we have streetcars/trams with overhead wires, which play havoc with (AM) radio when they go by.)