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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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