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R3131 Spectrum Analyzer Operation Manual

4.1 GPIB Remote Programming

4-14 Apr 10/98

4.1.9 GPIB Command Codes

The following tables list the GPIB commands by function.

Listener Code Column: An asterisk (*) in the Listener Code Column indicates that the function

requires numeric data together with the function code.

The sign /***/ in the Listener Code Column indicates that the function requires

character string data together with the function code.

[ON], [ON,] and numeric data are omissible.

String data such as file name, label and so on can receive characters, which are

found after the command and prior to the delimiter, as input values. However,

when data begins with a “/”, the characters between “/” and “/” are received as

input.

Output Format Column: A comma (,) in the Output Format column indicates that multiple items are

output.

ON/OFF or AUTO/MANUAL in the Output Format column indicates that the

code outputs 1 or 0, respectively.

All frequencies are in hertz (Hz), and all times are in seconds. Levels are

output in the currently displayed unit.

Table 4-1 Frequency

Function Listener Code

Talker Request

Code Output Format

Center frequency CF* CF? Center frequency

CF Step size CS* CS? CF Step frequency

CF Step AUTO CA CA? 0:Manual/ 1:Auto

Start frequency FA* FA? Start frequency

Stop frequency FB* FB? Stop frequency

Frequency span SP* SP? Span frequency

Full span FS ––– –––

Zero span ZS ––– –––

Peak zoom PKZOOM ––– –––

Last span LTSP ––– –––

LSPAN ––– –––

ADVANTEST R3131 User Manual

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