User`s guide

Chapter 3 131
Basic Digital Operation
Differential Encoding
These symbol table offsets will result in one of the transitions, as shown.
When applied to the user-defined default 4QAM I/Q map, starting from the 1st symbol (data
00), the differential encoding transitions for the data stream (in 2-bit symbols) 0011100001
00000011 0
Data Offset Value
Data Value 00000001
transition 1 state backward
with Symbol Table Offset -1
Data Value 00000010
transition 2 states forward
with Symbol Table Offset +2
Data Value 00000011
no transition
with Symbol Table Offset 0
Data Value 00000000
transition 1 state forward
with Symbol Table Offset +1