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Modulation Measurements Measurements
5-36 MS278XB OM
QPSK Measurement
The following modulation measurements use a 2 GHz test signal at 5 dBm with the analyzer set up as follows:
• Modulation Format: QPSK
•Filter Type: vNyquist
• Roll-off Factor (a): 0.22
•Symbol Rate: 3.84 MHz
Vector Graph of QPSK Modulated Test Signal
Figure 5-14. Vector Graph of QPSK Modulated Test Signal