4VSB
4VSB is an abbreviation for 4-level vestigial sideband modulation, capable of transmitting two bits (22=4) at a time.
Other faster but less rugged forms include 8VSB and 16VSB. Only 2VSB is more rugged, however it is also slower.
4VSB is an abbreviation for 4-level vestigial sideband modulation, capable of transmitting two bits (22=4) at a time.
Other faster but less rugged forms include 8VSB and 16VSB. Only 2VSB is more rugged, however it is also slower.