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Calibrating for Increased Measurement Accuracy
Adapter Removal Using ECal (ES Analyzers Only)
Adapter Removal Using ECal (ES Analyzers Only)
A device under test (DUT) whose connectors cannot be connected directly to a test configuration is
considered to be a noninsertable device. See
Figure 6-25. Noninsertable devices can be caused because the
DUT has:
• Input or output connectors with the same sex connector as the test configuration.
• Input or output connectors of a different connector type than the test configuration.
Figure 6-25 Noninsertable Device
The adapter removal calibration technique may be used with the ECal calibration to accurately measure
noninsertable devices. The following adapters (shown in
Figure 6-26) are needed.
• Adapter A1, which mates with port 1 of the DUT, must be installed on Port 1 of the analyzer.
• Adapter A2, which mates with port 2 of the DUT, must be installed on Port 2 of the analyzer.
• Adapter A3 must match the connectors on the DUT. The effects of this adapter will be completely
removed with this calibration technique.
NOTE Adapters A1 and A2 become part of the test setup to allow connection to the DUT. Adapter
A3 is used during the calibration only. Its effects will be removed.
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