User`s guide

Agilent Technologies E5500 Phase Noise Measurement System A-3
Connector Care and Preventive Maintenance
Using, Inspecting, and Cleaning RF Connectors
RF Cable and
Connector Care
Connectors are the most critical link in a precision measurement system.
These devices are manufactured to extremely precise tolerances and must be
used and maintained with care to protect the measurement accuracy and
repeatability of your system.
Toextendthelifeofyourcablesorconnectors:
• Avoid repeated bending of cables—a single sharp bend can ruin a cable
instantly.
• Avoid repeated connection and disconnection of cable connectors.
• Inspect the connectors before connection; look for dirt, nicks, and other
signs of damage or wear. A bad connector can ruin the good connector
instantly.
• Clean dirty connectors. Dirt and foreign matter can cause poor electrical
connections and may damage the connector.
• Minimize the number of times you bend cables.
• Never bend a cable at a sharp angle.
• Do not bend cables near the connectors.
• If any of the cables will be flexed repeatedly, buy a back-up cable. This
will allow immediate replacement and will minimize system down time.
Before connecting the cables to any device:
• Check all connectors for wear or dirt.
• When making the connection, torque the connector to the proper value.
Proper Connector
Torque
• Provides more accurate measurements
• Keeps moisture out the connectors
• Eliminates radio frequency interference (RFI) from affecting your
measurements
The torque required depends on the type of connector. Refer to Table A-1.
Do not overtighten the connector. Torque wrenches are supplied in the
calibration and verification kits that came with the system.