HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

MDU
Measurement Data Units
Returns values for the spectrum analyzer baseline and reference level.
Syntax
Related Commands: TDF.
Example
10 OUTPUT 718;"IP;TDF M;"
20 OUTPUT 718;"RL -1ODM;"
30 OUTPUT 718*"MDU'*" 9 , *
40 ENTER 718;A,B,C,D,A$
50 PRINT A,B,C,D,A$
60 END
Initializes the spectrum analyzer and formats the trace data
in measurenxent units.
Changes the refwertce level to -10 dBm.
Queries the position of the spectrum analyzer baseline and
reference level.
Moves the spectrum analyzer response to the computer
Displays the results on the computer screen.
The example returns the following to the controller: 0, 200, -90, -10 dBm. The first two
numbers received indicate that the vertical scale spans from 0 to 200 plotter units. The third
and fourth number received indicate that the baseline is at -90 dBm, and the reference level is
at -10 dBm. So, the baseline value of -90 dBm is equal to 0 plotter units. The reference level
of -10 dBm is equal to 200 plotter units.
Description
The MDU command returns values for the spectrum analyzer baseline and reference level, in
plotter units and measurement units.
5304 Programming Commands