COBHAM 2201R Reference Guide

2201R Mobile Tester SCPI Reference Guide
Chapter 2 Remote control of the 2201R Mobile Tester
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The Measurement subsystems
The 2201R provides the following measurement subsystems:
“The MEASure subsystem” – This subsystem provides the commands for all kinds of measurements: Single-shot as
well as series of measurements, measurements of single parameters as well as of groups of parameters.
“The FETCh subsystem” – To read out the latest measurement result of a specific parameter or a group of parameters.
The MEASure subsystem
The MEASure subsystem is probably the most important SCPI command subsystem of the 2201R. This subsystem
includes all commands to acquire measurement results of the mobile under test.
Measurements can be taken as one-shot measurements or as series of measurements:
Example:
First a BER measurement command is issued to start a BER measurement (because it takes some time).
Then several RF TX measurements are performed and the measurement results are read out and used for statistic data
evaluation.
After that the result of the BER measurement is read out.
NOTE
FETCh requires that a measurement is started first, using the MEASure commands.
NOTE
FETCh neither starts nor terminates continuous measurements.
NOTE
During a running test, parameter changes such as a channel or power level change
result in continuous measurements being stopped.
Type of
measurement
Related command
element
Short description
One-shot [:CONTinuous] Actually :CONT starts a measurement that is
performed continuously. Single measurement
results can be read out using the related :FETCh
commands.
Thus several measurements can be started (where
those measurements are started first that take the
longest time, like e.g. BER).
Series :ARRay This command element offers the possibility to
carry through a specific measurement a certain
number of times. All the single measurement result
values can be read out with just one command.
Using this feature, measurement results returned
can then be used e.g. for statistic data evaluation
on an external computer.

COBHAM 2201R Specifications

General

Brand	COBHAM
Model	2201R
Category	Test Equipment
Language	English