"Telamon" wrote in message
news:telamon_spamshield-
I don't need to get an HD radio and drive around LA. This is just plain
physics. Information transmitted is determined by the amount of power
and bandwidth applied to a signal. You can not have a more reliable
transmittal of a signal on less power and bandwidth. Do you get the
picture?

No, because the limiting factor on analog is, in most cases, noise. The
digital system itself has better system specs, and the reception systems can
make use of a much weaker digital signal than they can an analog one.