90 N9030B PXA Signal Analyzer Service Guide
Instrument Messages
Advisory Messages
Frequency Hopping enabled,
waiting for valid burst
The demodulated burst type has not been found in the originally
demodulated slot location within the frame.
Frequency menu has changed to
reflect frequency context
switch
The frequency context parameter has been changed either by the user or
the system. The frequency menu will now contain the frequencies for the
new context. No action required.
Gate required for valid
results
High-pass and Low-pass
filters set to OFF
Turning on any band pass filter will turn off high-pass and low-pass filters.
High-pass filter set to OFF Turning on any band pass filter will turn off high-pass filters.
IF Fixed freq should be
greater than LO Stop freq
The setup frequencies break the rules for an upconverter measurement.
The measurement will still run, but check setup frequencies are correct
before continuing. The IF fixed freq should be greater than the LO Stop
freq for a USB upconverter swept LO setup. Use the graph icon on the DUT
setup form to clarify the setup required.
IF Fixed freq should be
greater than RF Stop freq
The setup frequencies break the rules for an upconverter measurement.
The measurement will still run, but check setup frequencies are correct
before continuing. The IF fixed freq should be greater than the RF Stop freq
for an upconverter swept LO setup. Use the graph icon on the DUT setup
form to clarify the setup required.
IF Start freq should be
greater than LO Fixed freq
The setup frequencies break the rules for an upconverter measurement.
The measurement will still run, but check setup frequencies are correct
before continuing. The IF start freq should be greater than the LO fixed freq
for an USB upconverter fixed LO setup. Use the graph icon on the DUT
setup form to clarify the setup required.
IF Start freq should be
greater than RF Start freq
The setup frequencies break the rules for an upconverter measurement.
The measurement will still run, but check setup frequencies are correct
before continuing. The IF start freq should be greater than the RF Start
freq for an upconverter fixed LO setup. Use the graph icon on the DUT
setup form to clarify the setup required.
Input is internal The instrument’s input is set to internal (the internal amplitude reference
signal). So any signals connected to the front/rear panel inputs cannot be
measured.
LO Fixed freq should be
greater than IF Stop freq
The setup frequencies break the rules for an upconverter measurement.
The measurement will still run, but check setup frequencies are correct
before continuing. The LO fixed freq should be greater than the IF Stop
freq for an LSB upconverter fixed LO setup. Use the graph icon on the DUT
setup form to clarify the setup required.
Message Description/Correction Information
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