.\" @(#)transmitter	1.2 11/28/92
.NA transmitter
.SD
A simple 4-level PAM transmitter.
.DE
.SV 1.1 "November 24, 1992"
.AL "Chih-Tsung Huang (ported from Gabriel)"
.LO "~ptolemy/src/domains/cg56/demo/sim"
.LD
.pp
.Ir "PAM transmitter, 4 level"
.Ir "modulation, pulse amplitude"
This system uses a raised cosine to turn a random noise source
into a sequence of random symbols which is used  to generate
the four level line signal.
.PP
The "56sim" version of the demo simulates the universe.
.ES
