2
Service
120
Keysight 53210A/53220A/53230A Assembly Level Service Guide
Figure 2-4
Information screen
MY50000125
NOTE
If any number less than 01.08 is displayed as the number before the first dash in
the ‘Firmware:’ version, then refer to
, for any possible
changes to these calibration procedures for other firmware versions.
NOTE
If the counter’s firmware version is equal to or higher than 01.08, then perform
the procedures in this section.
NOTE
If Option 106 “6 GHz Microwave Input” is installed in your counter and the “FW
Rev” is (27.0), refer to
on page 264 for information
concerning the calibration procedure for your counter.
NOTE
After completing a new calibration of the counter, be sure to secure the stored
calibration values by performing the procedure in the section titled