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Keysight M8131A 16/32 GSa/s Digitizer User’s Guide
3
M8131A User Interface
Calibration Manager
Calibration is required to compensate some hardware distortions and to
have a proper symmetric signal leveled at zero volt. The calibration
process might take up to five hours. After a successful calibration, the
system stores the results and reloads them upon a power cycle.
The calibration process differs, depending on the module type – single
ended or differential inputs.
• Single ended: Connect calibration probe to channel one, start
calibration step, wait until it is finished, connect the probe to the next
channel.
• Differential inputs: One calibration step, start it and wait until it is
finished.
Figure 21
Calibrated zero volts on all channels with 50-ohm resistor caps installed
