Keysight U3606B, User Manual

Page: 160 / 210

4 System-Related Operation
Utility Menu Items
142 U3606B User’s Guide
Selecting a dBm reference resistance value
The dBm function is logarithmic, and is based on a
calculation of power delivered to a reference resistance,
relative to 1 mW. The following procedure shows you how to
select an appropriate dBm reference resistance value. The
factory default dBm reference resistance value is 600
Ω
.
Press [ ] or [ ] to change the dBm reference resistance
value (0001
Ω
to 9999
Ω
).
Performing a self-test
A power- on self- test occurs immediately when you turn on
the instrument. This limited test assures you that the
U3606B is operational.
The following procedure shows you how to perform a more
extensive self- test. A complete self- test performs a series of
internal tests, and may take up to 30 seconds to complete.
For remote interface operation, refer to the
*TST command
in the U3606B Programmer’s Reference .
C A U T I O N
Before performing the complete self-test, ensure that all test leads are
removed from the input and output terminals.