Agilent Technologies ESA Series User's/Programmer's Reference page 223

Bit descriptions in the Questionable Status Calibration Condition Register are given in the following
table.
Chapter 4
Use Status Registers to Determine the State of Analyzer Events and Conditions
Bit Decimal Description
Value
0 0 Reserved: This bit is not used by the analyzer, but are for
future use with other Agilent products.
1 2 Reserved: This bit is not used by the analyzer, but are for
future use with other Agilent products.
2 4 TG Align Failure: A 1 in this bit position indicates that a
failure has occurred while trying to align the tracking
generator (TG).
3 8 RF Align Failure: A 1 in this bit position indicates that a
failure has occurred while trying to align the RF section.
4 16 IF Align Failure: A 1 in this bit position indicates that a
failure has occurred while trying to align the IF section.
5 32 LO Align Failure: A 1 in this bit position indicates that
a failure has occurred while trying to align the local oscillator
(LO).
6 64 ADC Align Failure: A 1 in this bit position indicates that
a failure has occurred while trying to align the
analog-to-digital converter (ADC).
7 128 FM Demod Align Failure: A 1 in this bit position
indicates that a failure has occurred while trying to align the
FM demodulation circuitry. (Agilent ESA models E4401B,
E4402B, E4404B, E4405B, and E4407B Option BAA, FM
Demodulation, only).
8 256 Misc/Sys Align Failure: A 1 in this bit position
indicates that a digital demodulation RF alignment failure has
occurred.
9 512 Unused: This bit is always set to 0.
10 1024 Tracking Peak Needed: A 1 in this bit position indicates
that a tracking peak needs to be performed (the tracking
generator is in operation). (Agilent ESA models E4402B,
E4403B, E4405B, E4407B, and E4408B, with Option 1DN,
Tracking Generator, only).
11 2048 Align RF Skipped: A 1 in this bit position indicates that
the alignment of the RF section was skipped, perhaps due to
an external 50 MHz signal having been detected.
12 4096 Align RF Now Needed: A 1 in this bit position indicates
that the RF section needs to be aligned.
Status Registers
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