Keysight Technologies 85058E User's And Service Manual

Contents

85058B/E 1-3General InformationCalibration Kit Overviewfrequency from ALL measured standards instead of using only the three standards specified inthe class definitions. If you are using a PNA, it is RECOMMENDED that you use ExpandedMath with the 85058B data-based model for the highest accuracy. Expanded Math has noeffect with the 85058E data-based model.Polynomial ModelThe polynomial models may be used with SmartCal (Guided) and the Unguided MechanicalCalibration method of the PNA Cal Wizard. Polynomial models are less accurate than thedata-based models. The polynomial models define the calibration standards with traditionalfour-term polynomial calibration standard modeling parameters. For the PNA, it is NOTRECOMMENDED that the polynomial models be used if the most accurate results are desired.If you’re calibrating over the full frequency range of the calibration kit, you may be prompted toconnect some calibration standards more than once. These standards are defined by usingmultiple polynomial models to achieve the full frequency range of operation.Unlike the data-based models, the polynomial models allow you to modify the definitions ofcalibration standards like any other traditional model-based calibration kit. This is accomplishedwith the Advanced Modify Cal Kit dialog box. For more information on modifying the definitionsof the calibration standards, refer to online PNA Help.In the Modify Class Assignments dialog box, the “Expanded Math” feature is turned OFF bydefault when a polynomial model is selected. It is NOT RECOMMENDED that you useExpanded Math with a polynomial model unless the calibration kit includes overlapped bandedstandards such as a sliding load.Accuracy Ranking of the 1.85 mm Calibration Kits (item #1 has highest accuracy)1. 85058B (Standard), data-based mode2. 85058BP (Standard), polynomial model3. 85058E (Economy), data-based model4. 85058EP (Economy), polynomial model1.85 mm Calibration Techniques85058B (Standard) Calibration Kit• Offset Short Calibration technique❏ Files:85058B Data-Based.ckt85058BP Polynomial.ckt❏ OSL/SSS❏ “Lowband” definition of lowband load, open, and Short 185058E (Economy) Calibration Kit• Broadband Load Calibration technique❏ Files: