Coherent PSK and non coherent orthogonal FSK has a difference of ______ in PB.
A. 1db
B. 3db
C. 4db
D. 6db
Answer:A
Coherent PSK and non coherent orthogonal FSK has a difference of ______ in PB.
A. 1db B. 3db C. 4db D. 6db
Explanation: The difference of PB is approximately 4db for the best ( coherent PSK ) and the worst (non coherent orthogonal FSK).