E4990A Help
112
16092A) and 42941A’s dedicated probe adapter can be
regarded as 0.
4. Perform fixture compensation at the device contacts of the test
fixture. See Fixture Compensation for the fixture compensation
procedure.
5. If user calibration in step 2 cannot be performed for some reason,
set the port extension value in electrical length or delay time, which
is equivalent to the electrical length between the 7-mm port of the
42942A and the device contacts of the test fixture, in place of steps
2 and 3, in accordance with Port Extension Compensation.
Other topics about Calibration
F. 42941A, Probe Adapter
Perform the following calibration when a probe adapter supplied with the
42941A Impedance Probe is directly connected to the test port of the
42941A, which is connected to the four-terminal pair port of the E4990A,
and a device is connected to the probe adapter.
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