William "Chops" Westfield wrote: > But that doesn't mean you couldn't have a 9600bps FSK modem over a > link with inherently higher bandwidth than a phone line (say, a radio > link.) > > Was the original poster looking for a 9600bps FSK modem, or a 9600bps > phone-line modem? Not a phone-line modem. The channel bandwidth is about 20 kHz. Given the number of responses and not a single "hit", I shall assume that a= =20 9600 baud pure-FSK modem IC does not exist. :) Vitaliy=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .