Single
Sideband.
A form
of
amplitude
modulation
in which
the
carrier
and
"other"
sideband
are
suppressed.
It's
more
efficient
than AM,
occupies
only 1/2
the
spectrum
space,
and
eliminates
the
potential
of
annoying
heterodynes
on
crowded
bands.
On the
other
hand,
transmitters
are more
costly,
receivers
more
complex,
and
precise
tuning
is
required.
First
used by
the
telephone
on long
distance
telephone
circuits.
An SSB
signal
typically
occupies
about
2.5 KHz
of radio
spectrum.
