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Installation Guide
Connecting the Test Head
Connecting the Test Head
When performing calibration with the 7-mm Calibration Kit or measuring DUTs with the
test fixture and 7-mm terminal, you must first connect the test head to the E4991A. The
procedure for making this connection is described below.
NOTE
When connecting the test head:
•
•
Figure 2-11
Connecting test head to E4991A
Step 1. Attach the N-type connectors (test head side) to their corresponding terminals (RF OUT,
PORT 1 and PORT 2), which serve as the test head interface of the E4991A.
Step 2. Turn the N-type connectors for PORT 1 and PORT 2 at the same time to tighten them.
Step 3. Finally, turn the N-type connector for RF OUT to tighten it.
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Do not remove the four feet on the bottom of the E4991A; doing this would make the
connection more difficult.
Turn the N-type connectors in the order given in the instructions below when
tightening them. The N-type connector for the RF OUT terminal is mounted with a
special design for flexible movement to provide easier connection or removal of the
test head.
Chapter 2
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