44                             Keysight N9927-90001 User’s Guide
Preparing for Initial Use of Your New FieldFox
Connector Care
Connector Care
— Never store connectors, airlines, or calibration standards loose in a box. This 
is a common cause of connector damage. 
— Install protective end caps when connectors are not in use.
— Keep connector temperature the same as the test instrument. Holding the 
connector in your hand or cleaning connector with compressed air can 
significantly change the temperature. Wait for connector temperature to 
stabilize before using in calibration or measurements.
— Do not touch the mating plane surfaces. Natural skin oils and microscopic 
particles of dirt are difficult to remove from these surfaces.
— Do not set connectors contact-end down on a hard surface. The plating and 
mating plane surfaces can be damaged if the interface comes in contact 
with any hard surface.
— Wear a grounded wrist strap and work on a grounded, conductive table 
mat. This helps protect the analyzer and devices from electrostatic 
discharge (ESD).
— Refer to “Connector Care Review” on page 715.
Because of the very small and precise mechanical tolerances of mmWave 
connectors, minor defects, damage, and dirt can significantly degrade 
repeatability and accuracy. In addition, a dirty or damaged connector can 
destroy connectors that are mated to it. For this reason, NEVER use a 
damaged connector. See also 
http://na.support.keysight.com/pna/connectorcare/Connector_Care.htm