Agilent Technologies 8590 Series Service Manual page 578

Softkey Descriptions
Softkey Descriptions
CORRECT ON OFF Correction On/Off
D The analyzer corrects for variations in hardware
ESCRIPTION
performance in two ways.
• Digital offsets of the video signal on the A16
processor/video assembly.
• Adjustment of the DAC control voltages provided by
the A7 analog interface assembly.
The
CORRECT ON OFF
offsets of the video signal.
The uncorrected performance of individual assemblies
can be checked by disabling the correction data. The
following corrections are disabled when
is selected.
• Step-gain-error correction factors. New correction
factors are produced by the
self-calibration routine.
• Bandwidth-amplitude correction factors. New
correction factors are produced by the
self-calibration routine.
• Log-scale-fidelity correction factors. New correction
factors are produced by the
self-calibration routine.
• Input-attenuator correction factors. New correction
factors are produced by the
self-calibration routine.
• Bandwidth-centering correction factors. New
correction factors are produced by the
self-calibration routine.
• Flatness-correction constants. The original
constants are placed in the analyzer memory at the
factory. New constants must be generated manually
using the frequency response adjustment procedure
in
• A12 amplitude control step-attenuator-correction
constants. The original constants are placed in the
analyzer memory at the factory. New constants must
be generated manually using the cal attenuator
error correction procedure in
578
function affects only the digital
Chapter 2 .
CORRECT OFF
CAL AMPTD
CAL AMPTD
CAL AMPTD
CAL AMPTD
CAL AMPTD
Chapter 2 .
Chapter 13