Agilent Technologies 8590 Series Service Manual page 202

Backing Up and Reloading Correction Constants
Backing Up Analyzer Correction Constants
Retrieve the timebase and flatness-correction
constants
1. Make a copy of the Correction Constant Backup-Data Record at the
end of this chapter.
2. Record the date and instrument serial number.
Skip Step 3 and Step 4
precision frequency reference or if testing an 8590L with Option 713.
3. Press the following keys.
PRESET
, −37,
FREQUENCY
,
CAL More 1 of 4
4. Press
VERIFY TIMEBASE
the active-function block in
5. Press the following keys.
,
SERVICE CAL FLATNESS DATA
6. The signal trace represents the frequency-response (flatness)
correction-constant data. The active-function block displays the
frequency response error.
7. Record the frequency-response error in the appropriate table for
your analyzer.Table 3-3
analyzers and 8591C cable TV analyzers.
3-12 are for all other 8590 E-Series and L-Series spectrum
analyzers.
⇑
8. Press , then record the next frequency-response error in the
appropriate table.
9. Repeat the previous step until all frequency-response errors are
⇓
recorded. Use to view previous data points.
10.Press when all frequency-response errors have been recorded.
EXIT
202
if your instrument is equipped with a
Hz
,
More 2 of 4
, then record the number that is displayed in
Table 3-2.
,
EDIT FLATNESS
is for the 8590L and 8591E spectrum
Table 3-5 through Table
Chapter 3