Keysight 8990B Service Manual page 30

1 Performance Verification and Adjustments
17 Compare the computed accuracy errors to the calibration uncertainty values in
18 Repeat steps 13 to 17 by sweeping through the power levels from +10 dBm to
30
the data sheet at
https://literature.cdn.keysight.com/litweb/pdf/5990-8126EN.pdf?id=205092.
If the verification fails, return the 8990B to Keysight.
+20 dBm. Level the power manually if necessary, with reference to the incident
sensor, use the following equation:
Test port power = P + P
INC2 cpl
Keysight 8990B Service Guide