Agilent Technologies ESA-E Series Programmer's Manual page 333

Error Messages
Status Messages
Input is internal (no corresponding statu s
bit)
This message applies to the Agilent Technologie s
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 interna l
signal path .
(LO
Align Failure) status bit only, no messag e
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 loca l
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.
Chapter 7
7-5