110 Chapter 3
Making Measurements
Modulation SINAD Measurement
Figure 3-21 FM Modulation SINAD Measurement Result
Signal Under Test: RF Frequency: 1.25 GHz; Amplitude: –30.0 dBm;
FM Deviation: 100 kHz; FM Rate: 400 Hz; Modulation: On.
Set the N5531S FM De-emphasis to None.
In this example, the measured FM Modulation SINAD 31.004 dB.
Figure 3-22 PM Modulation SINAD Measurement Result
Signal Under Test: RF Frequency: 1.25 GHz; Amplitude:–30.0 dBm;
PM Deviation: 150 rad; PM Rate: 400 Hz; Modulation: On.
In this example, the measured PM Modulation SINAD 25.585 dB.
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