User Calibrations-Optical And Electrical - HP 83487A User Manual

• adjusting timebase skew, for matching propagation delay between channels,
• using external probes
• adjusting timebase skew
• monitoring and adjusting internal offsets
• performing a user-defined O/E responsivity adjustment
C A U T I O N
User Calibrations—Optical and Electrical
The following calibrations can be performed by the user:
O/E User Wavelength Calibration
Plug-in Module Vertical Calibration
Offset Zero Calibration
Dark Calibration
Probe Calibration
Channel Skew
External Scale
Electrical channels have calibration procedures for:
probes, cables, and so forth
Optical channels have calibration procedures for:
The input circuits can be damaged by electrostatic discharge (ESD). Avoid
applying static discharges to the front panel input connectors. Before
connecting a coaxial cable to the connectors, momentarily short the center and
outer connectors of the cable together. Avoid touching the front panel input
connectors without first touching the frame of the instrument. Be sure the
instrument is properly earth-grounded to prevent buildup of static charge. An
antistatic mat and wristband are strongly recommended, particularly when
working with TDR modules.
Calibration Overview
User Calibrations—Optical and Electrical
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