Calibration Overview - HP 54753A User Manual

C A U T I O N
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
that the instrument is properly earth-grounded to prevent buildup of static
charge. It is strongly recommended that an antistatic mat and wristband be
used when connecting to TDR inputs.
N O T E
For information about TDR/TDT normalized measurements, refer to
"Establishing the Reference Plane and Normalizing" located in Chapter 7.
Establishing normalization and a reference plane improves TDR measurement
accuracy.
Setup Channel Menu

Calibration Overview

Calibration Overview
This section describes the calibration of the mainframe and TDR plug-in
modules vertical channel accuracy. It is intended to give you, or the calibration
laboratory personnel, an understanding of the various calibration procedures
available, and how they were intended to be used.
Proper calibration is critical to measurement accuracy and repeatability. The
HP 54750A/83480A and their associated modules and accessories require that
both factory and user calibrations be implemented at the recommended
intervals in order to perform measurements at their published specifications.
The following two sections describe factory and user calibrations. The first
section describes factory calibrations. A factory calibration consists of verifying
instrument performance to all specifications. If an instrument fails to meet
specifications, adjustment or repair may be necessary. For most users, this will
mean shipping the instrument back to an authorized service center. Some users
may purchase the required instrumentation and perform the factory timebase
calibrations themselves using the optional HP 83480A, 54750A Service Guide
or the TDR performance verification using the HP 54753A/54A Service Guide.
The second section addresses calibrations that are routinely performed by the
end user. In addition, there will be summary tables at the end of each of these
sections summarizing the main areas addressed. Both factory and user
calibrations must be performed regularly in order to ensure proper
measurement accuracy and repeatability.
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