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Unknown Thru Calibration

Question asked by chard on May 30, 2008
Latest reply on Jun 2, 2008 by chard
Can you provide more details on how the Unknown Thru Calibration works on the E5071C and how to apply it? The on-line manual does not describe the theory-of-operation or use-model.

Here are some questions:
1) Is the Unknown-Thru method a modification to the cal kit? Is this just a correction method for the standard thru which I presume is a matched Zo, lossless, and  zero delay?
2) Is the Unknown Thru characterized with SOL calibration standards?
3) What's the role in setting "approximate offset delay value" for the Unknown Thru?