Agilent Technologies 8935 Series, Manual

Page: 95 / 343

94 Chapter 4
Preventative Maintenance
Hardware Maintenance
Hardware Maintenance
The following procedures should be performed on a regular basis to
insure that your Test Set maintains optimum performance.
NOTE
Periodic Adjustment Interval
The adjustment programs Periodic Calibration, IQ Calibration, and
Eb/No Calibration should be performed after any assembly referred to
in
Table 7-1 on page 159 is replaced, or at least every 24 months. These
program can be run anytime to optimize the performance of the Test
Set. See
Chapter 7 , “Periodic Adjustments,” on page 157 for details.
NOTE
Performance Test Interval
The performance tests in Chapter 8 , “Performance Tests,” on page 173
should be performed when certain assemblies are repaired or replaced,
or at least every 24 months. See
Table 3-2 on page 75 for those
assemblies requiring performance testing/calibration.
Adjustments
• Periodic Adjustments
Adjustments for calibration are part of the automated routines:
Periodic Calibration, IQ Calibration, and Eb/No Calibration. To run
these routines see
“Running the Periodic, IQ, or Eb/No Calibration
Programs” on page 163 . Running these routines will adjust internal
calibration and circuit paths for optimum performance. These
routines can be run on any interval from six months to two years,
depending on the severity of the application environment. These
routines should also be run whenever a significant change to
instrument’s hardware configuration is made. For instructions on
running the periodic adjustment routines see
Chapter 7 , “Periodic
Adjustments,” on page 157 .