Test Set Cal and SelfCal
Introduction
| SelfCal |
| A SelfCal is an automated internal system calibration that should be performed on a |
| regular, frequent basis. If the operating temperature of the analyzer and test set is |
| within the specified range (refer to Chapter 8), the recommended time interval is |
| about once an hour. A SelfCal does not require removal of the DUT or external |
| connections of calibration standards. The SelfCal uses the results of the most recent |
| Test Set Cal along with measurements of internal, electronically switched open, |
| short, load, and through transfer standards to remove the drift of the network |
| analyzer and multiport test set due to environmental variations. |
| See “Test Set Cal and SelfCal: Theory of Operation” for detailed information on |
| how the Test Set Cal and SelfCal work together. |
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NOTE | Agilent recommends that you use the Test Set Cal and SelfCal features whenever |
| you are using your multiport system. If you prefer, you can select from traditional |
| analyzer calibrations, although in doing so the Test Set Cal and SelfCal features will |
| not be available. Refer to your analyzer’s User’s Guide for information on these |
| traditional calibrations. |
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Chapter 3 | 31 |
