CMU General
1100.4903.82 1.1 E–4
1 Performance Test
This chapter provides the necessary information for checking the technical data of the CMU. Please
read the general notes on the test procedure on page 1.7 first. Then follows a list of the measuring
equipment required for the performance test; a form for the test report is to be found at the end of this
chapter.
The adjustment of the instrument for restoring the data integrity and the measuring equipment required
for this purpose will be described in chapter 2 of this service manual.
General
The technical data of a CMU can be checked in the following ways:
A) Calibration by an R&S Representative with an ACS Calibration System
Advantages
• Automatic procedure
• Small measurement uncertainties
• Calibration and readjustment
• In most cases, the instrument does not have to leave the country
B) Sending the Instrument to the Factory (Memmingen, Germany)
Advantages
• Automatic procedure at the final test setup
• Minimum measurement uncertainties
• Calibration and readjustment
Necessary Documents
• Operating manual CMU200/CMU300
• Data sheet CMU200
Note: It is recommended to read the following journal on the subjects "measurement uncertainty"
and "tolerance analysis": ETSI Technical Report ETR 028, June 1997
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