Chapter 2 Performance Verification Test RIGOL
DSA1000A/DSA1000 Performance Verification Guide
3. Set the signal generators:
Set the output frequency of signal generator A to 50 MHz and the amplitude to -20 dBm.
Set the output frequency of signal generator B to 53 MHz and the amplitude to 0 dBm.
4. 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 reading of the power meter becomes -20 dBm.
5. Press Channel on the power meter and set the frequency of channel A to 53 MHz.
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 reading of the power meter becomes 0 dBm.
6. Disconnect the power divider and power sensor and connect the power divider with spectrum
analyzer, as shown in Figure 2-7 (b).
7. Enable the output of signal generator A and disable the output of signal generator B.
8. Configure the spectrum analyzer:
a) Set the center frequency to 50 MHz.
b) Set the span to 100 kHz.
c) Set the reference level to -20 dBm.
d) Set the input attenuation to 0 dB.
e) Set the resolution bandwidth to 1 kHz.
f) 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 measure the current
peak and record the measurement result as A1.
10. Enable the outputs of the two signal generators. Press Single and wait for the instrument to
finish a sweep. Press Peak to measure the peak at 50 MHz (A2).
11. Delta = A1 - A2 and record the delta result.
Test Record Form
Output Amplitude of
Signal Generator B
Measurement
Result A1
Measurement
Result A2
Calculation
Result
[1]
Limit Pass/Fail
0 dBm
< 1 dBm
Note: [1] Calculation Result = A1 - A2.