Keysight 85033E User’s and Service Guide
4-1
Keysight 85033E
3.5 mm Calibration Kit
User’s and Service Guide
4
Performance Verification
Introduction
The performance of your calibration kit can only be verified by returning the
kit to Keysight Technologies for recertification. The equipment required to
verify the specifications of the devices inside the kit has been specially
manufactured and is not commercially available.
How Keysight Verifies the Devices in This Kit
Keysight verifies the specifications of these devices as follows:
1.
The residual microwave error terms of the test system are verified with
precision airlines and shorts that are directly traced to NIST (National
Institute of Standards and Technology). The airline and short
characteristics are developed from mechanical measurements. The
mechanical measurements and material properties are carefully
modeled to give very accurate electrical representation. The mechanical
measurements are then traced back to NIST through various plug and
ring gages and other mechanical measurements.
2.
Each calibration device is electrically tested on this system. For the
initial (before sale) testing of the calibration devices, Keysight includes
the test measurement uncertainty as a guardband to guarantee each
device meets the published specification. For recertifications (after sale),
no guardband is used and the measured data is compared directly with
the specification to determine the pass/fail status. The measurement
uncertainty for each device is, however, recorded in the calibration
report that accompanies recertified kits.
