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Qam measurement, Qam measurement -40 – Anritsu Series MS278XB User Manual

Page 196

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Modulation Measurements

Measurements

5-40

MS278XB OM

QAM Measurement

The following modulation measurements use a 2 GHz, 64QAM modulated test signal at 5 dBm with the
analyzer set up as follows:

Modulation Format: 64 QAM
Roll-off Factor (a): 0.22
Symbol Rate: 5 MHz

Constellation Graph of 64 QAM Modulated Test Signal

Figure 5-18. Constellation Graph of 64 QAM Modulated Test Signal