Anritsu MX269018A - Page 157

4.3 Audio Performance Test
4-11
4
Performance Test
8. Set Generator Channel 1 of the U8903A as below.
Frequency: 1 kHz
Output Level: [Syscal_Unbal_1400] V rms
Output Type: Unbal
Impedance: 50

Output Signal: On
9. Press
to measure.
10. Record the measurement results of AF Level rms of the MS2830A.
11. Read THD+N of the MS2830A. This value is a measured value of the
input distortion.
12. Set AF Input of the MS2830A as below.
● Input Type: Bal.
● Input Range: 5 V p
13. Set Generator Channel 1 of the U8903A as below.
Frequency: 1 kHz
Output Level: [Syscal_bal_1400] V rms
Output Type: Bal
Impedance: 100

Output Signal: On
14. Repeat Steps 9 through 10.
15. Turn Off the U8903A output.