Promax 27 Manuel page 144

Figure 35 shows the other signal (Q in quadrature) on a vertical axis to consider
the 90° phase change.
Figure 36 shows the combination of these two signals. This image constitutes the
Constellation Diagram of the modulated digital signal.
Page 66
Figure 36.- I-Q states combination
USER'S MANUAL. PROMAX-27
09/2010