Keysight NFA Series Noise Figure Analyzers Service Guide 119
Instrument Messages
Condition Messages
For example, error 207 indicates a Burst Not Found condition has been
detected, error 1207 indicates that failure has been cleared.
This register is summarized as bit 0 of the
STATus:QUEStionable:INTegrity register, as described in the section
“Condition Errors 101 to 199, Measurement Integrity” on page 115.
Err# Bit in
status
register
Message Error or
Warning
More Information
203 0 unused E
205 1 unused E
207 2 Burst Not Found E The burst signal cannot be detected because of
inappropriate parameter settings or incorrect signal.
An in appropriate parameter setting could cause the
signal to be partially, rather than fully, on the display,
Burst Search Threshold and/or Burst Search Length
may need to be adjusted.
An incorrect signal could have either insufficient power,
the rising or falling edges cannot be detected, or the
burst is less than 126microseconds.
Carrier signal is not actually bursted.
W-CDMA: Either the signal being analyzed has
insufficient power, the rising or falling edges cannot be
detected, or the burst is less than 126microseconds.
W-CDMA: Cannot synchronize measurement with
PRACH channel for Power Control measurement,
because the signal cannot be found. Make sure PRACH
is present in the W-CDMA uplink signal, and that the
preamble signature and scramble code are set
correctly.
GSM: Data was acquired but a GSM burst was not
found, with the timeslot mode disabled.
NADC, PDC: A valid burst is not found when the Device
is MS.
1xEV-DO: Data was acquired but a 1xEV burst was not
found, with the timeslot mode disabled.
Bluetooth: The burst that has been found does not
correspond to the currently selected Bluetooth packet
type (the burst length may be too short).
WLAN: The instrument cannot find a valid WLAN burst.
You may need to extend the search length.
In PSA, this error was reported as one of the following
error numbers: 10772, 13104, 10160, 10286, 10420,
10454, 10614, 10904, 10928, 13074, 10287
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