Chapter 4 4-13
Troubleshooting
Status Messages
Input is internal (no corresponding status
bit)
This message applies to the Agilent Technologies
E4401B and E4411B only. Indicates the
50 MHz Amptd
Ref selection is On. With the 50 MHz amplitude
reference on, the input is routed through an internal
signal path.
(LO Align Failure) status bit only, no message
A failure has occurred during the alignment of the local
oscillator (LO). Measurement results may be invalid.
LO Out Unlevel (LO Out Unleveled)
Indicates the output of the local oscillator (LO) has
become unleveled. This condition must be corrected to
make valid measurements.
LO Unlevel (LO Unleveled)
Indicates the internal circuitry of the local oscillator
(LO) has become unleveled. This condition must be
corrected to make valid measurements.
LO Unlock (Synth Unlocked)
Indicates the phase locked circuitry of the local
oscillator (LO) has become unlocked. This condition
must be corrected to make valid measurements.
Meas Uncal (Oversweep)
The measurement is uncalibrated. Check the sweep
time, span and bandwidth settings, or press
Auto
Couple.
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