Chapter 2 Performance Verification Test RIGOL
DG4000 Performance Verification Guide
4. Enable the peak table function of the spectrum analyzer and set appropriate
peak measurement parameters to make the peak table display the
measurement values of the fundamental wave and the second harmonic. Record
the measurement values in the peak table and check if the harmonic distortion
is
less than -60 dBc through calculation
[1]
.
5. Keep other settings of DG4000 unchanged, set the frequency to 10 MHz and set
the spectrum analyzer as follows:
a) Set the input attenuation to 20 dB and the reference level to 10 dBm;
b) Set the start frequency to 1 MHz and the stop frequency to 50 MHz;
c) Set the resolution bandwidth to 3 kHz.
6. Record the measurement values in the peak table and check if the harmonic
distortion is less than -55 dBc through calculation
[1]
.
7. Keep other settings of DG4000 unchanged, set the frequency to 100 MHz (60
MHz for DG4062 and based on it, to set the start frequency and stop frequency
of the spectrum analyzer) and set the spectrum analyzer as follows:
a) Set the input attenuation to 20 dB and the reference level to 10 dBm;
b) Set the start frequency to 50 MHz and the stop frequency to 400 MHz;
c) Set the resolution bandwidth to 3 kHz.
8. Record the measurement values in the peak table and check if the harmonic
distortion is less than -50 dBc through calculation
[1]
.
9. Keep other settings of DG4000 unchanged, set the frequency to 160 MHz (only
for DG4162 and DG4202) and set the spectrum analyzer as follows:
a) Set the input attenuation to 20 dB and the reference level to 10 dBm;
b) Set start frequency to 150 MHz and the stop frequency to 500 MHz;
c) Set the resolution bandwidth to 3 kHz.
10. Record the measurement values in the peak table and check if the harmonic
distortion is less than -40 dBc through calculation
[1]
.
11. Repeat steps 1 through 10 to verify the harmonic distortion of CH2.