2201R Mobile Tester SCPI Reference Guide
Chapter 2 Remote control of the 2201R Mobile Tester
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The following types of parameters exist on the 2201R:
•
Numeric parameters
. These are integers, floating point numbers (with a maximum of 6 decimals) or expo-
nential numbers (see specifications IEEE 488.2 NRf format or ANSI X3.42-1975 for details).
•
Boolean
parameters are specified using the binary numbers 0 | 1, or ON | OFF instead.
•
Enumerated parameters
are strings that only may be selected from a predefined list. To distinguish them
from string parameters, the enumerated parameters must
not
be put in quotation marks.
Example:
:CONFigure:GSM:TYPE GSM9001800
sets the 2201R to work as test set for GSM 900/1800.
•
String parameters
are user-defined strings.
•
Block parameters
are a special case and are described with the related commands.
Queries
Many commands also have a query form. These queries enable you to read out the current value of parameters or
the results of measurements.
For a query, simply add a question mark to the command (without any spaces or other symbols in-between).
Example:
:RFG:FREQ?
returns the current transmission frequency of the RF generator.
Common commands
Common commands are defined in IEEE 488.2.
They work on the device itself (and on any subsystem) and always start with an asterisk (*).
Example:
*RST
resets the 2201R Mobile Tester and sets all system parameters to default values.
A list of all common commands can be found in
NOTE
The decimal point of floating point numbers must be the dot (.) within SCPI because a
comma (,) is always interpreted as the separator between two parameters (see Notes
below for details).
NOTE
The result of a query is saved internally on the 2201R Mobile Tester.
NOTE
The SCPI system is not case-sensitive. It does not matter for the syntax whether
commands are written using capital letters, lowercase letters, or a mixture of both.
However, for easy maintenance of SCPI programs, it is recommended to type in the
short form of a command in capital letters (
CONF
) and the rest of it in lowercase letters
(
CONFigure
).