Keysight NFA Series Noise Figure Analyzers Service Guide 125
Instrument Messages
Condition Messages
309 4 User Cal; Adjusted
for new RBW
W The measurement RBW has been changed since
the last calibration (~CAL)
311 5 Calibration W
311 5 Calibration; ENR
table extrapolated
W One or more calibration or measurement
frequency points exceed the currently loaded Cal
or Meas ENR Table frequency ranges. The
corresponding ENR table’s lowest frequency ENR
value will be re-used for frequencies less than the
table range, and the highest frequency ENR value
will be re-used for frequencies greater than the
table range.
(~ENR)
311 5 Calibration; No ENR
data present
W No ENR Data (ENR)
313 6 Source Uncal W
313 6 Source Uncal;adj
Start Freq or RBW
W While using a Tracking Source, you must make
sure the Start Frequency is high enough to avoid
capturing LO feedthrough in the trace. This
depends on both Start Freq and RBW. If you get
this message, increase the Start Freq or narrow
the RBW.
315 7 Preamp: Accy unspec’d
<XX kHz
W Preamp will function at lower frequencies, but the
performance is not specified below XX kHz (XX is
model number specific).
317 8 unused W
319 9 unused W
321 10 unused W
323 11 unused W
325 12 unused W
327 13 unused W
329 14 unused W
Err# Bit in
status
register
Message Error or
Warning
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