Tektronix RSA3408, Руководство по обслуживанию

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Adjustment Procedures
RSA3408B Analyzer Service Manual
4- 21
Table 4- 3: Calibration items
Calibration group Calibration item Description Execution side key
10 MHz reference --
1
10 MHz internal reference output frequency 10 MHz Reference
All band Gain W Gain in the baseband, RF1, RF2, and RF3 wideband All Band
Gain N Gain in RF1, RF2, and RF3 narrowband
BB Flat Flatness in the baseband
IF Flat N Flatness in RF1, RF2, and RF3 narrowband
RF1 Flat Flatness in the RF1 band
RF2 Flat Flatness in the RF2 band
RF3 Flat Flatness in the RF3 band
Spurious Spurious in the RF1, RF2, and RF3 bands
IF flatness (wide/IQ) IF Flat W Flatness in RF1, RF2, and RF3 wideband IF Flatness Wide/IQ
IQ gain (Option 03 only) Gain W IQ gain IQ Gain
1
Not shown in the calibration table on the screen. The 10 MHz reference calibration constant is written in the Dac.cal file.
The service Cal menu has the following controls:
Target Files. Selects the calibration items.
H
All. Selects all calibration. (See the All column in the table on the screen.)
The results are overwritten to the existing cal files.
H
Absent. Selects the calibration that has no cal file.
(See the Absent column in the table on the screen.)
Cal Select.
Selects the calibration items for the All Band group in Table 4--3.
H
All.
Selects all the calibration items in the All Band group.
H
Spurious. Selects the spurious calibration only.
NOTE
. It takes about three hours to perform the spurious calibration for each of
the RF1, RF2, and RF3 bands (about nine hours in total).
H
Other. Selects all the calibration except spurious in the All Band group.
All Band.
Performs the selected calibration in all bands (Baseband, RF1, RF2,
and RF3). Measurement bandwidth: 1 MHz to 8 GHz.