Keysight NFA Series Noise Figure Analyzers Service Guide 111
Instrument Messages
Condition Messages
Condition Errors 36 to 64, Calibration Needed or Failed
This series of errors corresponds to the bits in the
STATus:QUEStionable:CALibration register. The second column in the
table shows the corresponding bit in that register.
An event with the error number shown in the table means the condition has
been detected. When the condition is cleared, an event with the error number
plus 1000 is generated. These error numbers can be viewed in the Show Errors
screen, along with the DETECTED and CLEARED indicators.
For example, error 42 indicates that the “RF Alignment Failure” condition has
been detected, and error 1042 indicates that failure has been cleared.
Several bits in this register are “summary bits” for registers at a lower level.
There are no error messages associated with these bits; they exist only as
status bits, which can be read with a STATus:QUEStionable:CALibration?
event query or a STATus:QUEStionable:CALibration:CONDition? query.
Note that these summary bits summarize the state and history of the event
registers at the lower level. This is true even for bits in the
STATus:QUEStionable:CALibration condition register. This means that:
— The summary bits read by the
STATus:QUEStionable:CALibration:CONDition? query are true if any
event bits are set in any of the :CALibration sub-registers :SKIPped,
:EXTended:NEEDed or :EXTended:FAILure.
— The summary bits read by the STATus:QUEStionable:CALibration?
event query are true if any event bit has undergone a false-to-true
transition with the PTRansition filter set, or a true-to-false transition with
the NTRansition filter set, in any of the :CALibration sub-registers :SKIPped,
:EXTended:NEEDed or :EXTended:FAILure.
18 6 unused
20 7 unused
22 8 unused
24 9 unused
26 10 unused
28 11 unused
30 12 unused
32 13 unused
34 14 unused
Err# Bit in
status
register
Message Error or
Warning
More Information