Amateur Extra › E8 Signals and Emissions › E8C13
E8C13
What is described by the constellation diagram of a QAM or QPSK signal?
Pick an answer to check it.
Answer: B. The possible phase and amplitude states for each symbol
A constellation diagram plots each possible symbol as a point by its phase and amplitude. It shows all the states a QAM or QPSK signal can use.
Tip: Constellation dots = phase and amplitude states.