© National Instruments Corporation 15 NI 5761R User Guide and Specifications
Figure 9. AC-Coupled Spectral Measurements: 19.5 MHz and 20.5 MHz,
–13 dBFS, 8,192 Point FFT, 10 RMS Average
Figure 10. AC-Coupled Spectral Measurements: 20.1 MHz, –1 dBFS, 8,192 Point FFT, 10 RMS Average
200
–115
–110
–105
–100
–95
–90
–85
–80
–75
–70
–65
–60
–55
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
0
Amplitude (dBFS)
Frequency (MHz)
40 60 80 100 120
100
–115
–110
–105
–100
–95
–90
–85
–80
–75
–70
–65
–60
–55
–50
–45
–40
–35
–30
–25
–20
0
Amplitude (dBFS)
Frequency (MHz)
–15
–10
–5
20 30 40 50 60 70 90 100 110 12080