720                                                                                                                     Keysight N9927-90001 User’s Guide
Instrument Calibration
What Are My Choices of Instrument Calibration?
What Are My Choices of Instrument Calibration?
The following types of instrument calibration are available from Keysight 
Technologies service center:
Keysight Calibration 
Includes the test data from the calibration and the 
certificate of calibration, stating the instrument has been 
calibrated and is operating within the published 
specifications.
ANSI Z540 
Calibration
Includes the test data from the calibration and the 
certificate of calibration, stating the instrument has been 
calibrated using a process in compliance with ANSI 
Z540.1 and is operating within the published 
specifications
ISO 17025 
Calibration
Includes the test data from the calibration and the certificate of 
calibration, stating the instrument has been calibrated using a process in 
compliance with ISO 17025 and is operating within the published 
specifications.Chapter 3, “CAT (Cable and Antenna Test) Mode.”