Chapter 2 Performance Verification Test RIGOL
DSA1000A/DSA1000 Performance Verification Guide
Set the output frequency of signal generator B to 1.0002 GHz and the amplitude to -10 dBm.
3. Connect the output terminal of signal generator A with the power divider via the 1 GHz low-pass
filter.
4. Connect the output terminal of signal generator B with the power divider and connect the power
divider with the power sensor, as shown in Figure 2-6 (a).
5. Press Channel on the power meter and set the frequency of channel A to 1 GHz. Enable the
output of signal generator A and disable the output of signal generator B. Observe the
measurement value of the power meter. Adjust the output amplitude of signal generator A until
the measurement value of the power meter becomes -10 dBm.
6. Press Channel on the power meter and set the frequency of channel A to 1.0002 GHz. Disable
the output of signal generator A and enable the output of signal generator B. Observe the
measurement value of the power meter. Adjust the output amplitude of signal generator B until
the measurement value of the power meter becomes -10 dBm.
7. Enable the outputs of the two signal generators. Disconnect the power divider and power sensor
and connect the power divider with spectrum analyzer, as shown in Figure 2-6 (b).
8. Configure the spectrum analyzer:
a) Set the center frequency to 1 GHz.
b) Set the span to 100 kHz.
c) Set the CF step to 200 kHz.
d) Set the maximum mixing level to -20 dBm.
e) Set the reference level to 0 dBm and the input attenuation to 20 dB.
f) Set the resolution bandwidth to 300 Hz and the video bandwidth to 300 Hz.
g) Set the peak excursion to 3 dB.
h) Set the sweep time to auto and the auto sweep time to accuracy.
9. Press Single and wait for the instrument to finish a sweep. Press Peak to find the maximum
peak. Set the cursor type to Delta, reduce the center frequency by 200 kHz, press Peak and
record the delta result.
10. TOI Distortion = -20 dBm - Delta/2 and compare the calculation result with the
specification.
11. Exchange the output frequencies of the two signal generators and set the center frequency of
the spectrum analyzer to 1.0004 GHz. Press Single and wait for the instrument to finish a
sweep; then, press Peak and record the delta result.
12. TOI Distortion = -20 dBm - Delta/2 and compare the calculation result with the
specification.
To Next Page
Loading...
Need help?
General
