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
More Information
Содержание N8973B
Страница 4: ...4 ...
Страница 44: ...44 Keysight NFA Series Noise Figure Analyzers Service Guide Overview How to Return Your Instrument for Service ...
Страница 132: ...132 Keysight NFA Series Noise Figure Analyzers Service Guide Instrument Messages Condition Messages ...
Страница 228: ...228 Keysight NFA Series Noise Figure Analyzers Service Guide RF Section Troubleshooting N8976B Troubleshooting ...
Страница 268: ...268 Keysight NFA Series Noise Figure Analyzers Service Guide Analog Digital IF Troubleshooting 25 MHz BW IF Section ...
Страница 322: ...322 Keysight NFA Series Noise Figure Analyzers Service Guide Block Diagrams Block Diagrams Block Diagrams ...
Страница 332: ...332 Keysight NFA Series Noise Figure Analyzers Service Guide Block Diagrams Block Diagrams NFA Computer Block Diagram ...
Страница 350: ...350 Keysight NFA Series Noise Figure Analyzers Service Guide Service and Diagnostics Menus Front Panel Key Test ...
Страница 470: ...470 Keysight NFA Series Noise Figure Analyzers Service Guide Assembly Replacement Procedures Front Frame Assembly ...