jbn@glacier.STANFORD.EDU (John B. Nagle) (06/14/88)
What simple chips or modules are available for data transmission
over a good-quality audio channel? I'd like to get 15Kb or more, and
have an audio channel with about 15KHz bandwidth. The link is simplex;
it's a telemetry system. So systems with handshaking, cooperative
equalization, and retransmission are out. This eliminates some of the
more exotic modem technologies, but then, at 1 baud per hertz, they
should not be necessary.
Someone mentioned some new Motorola parts here recently, but I don't
have the reference. Did anyone catch that go by?
John Nagle