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5-17
Programming Commands
Measurement Instructions
MEASure{:ARRay | [:SCALar]} :POWer?
Returns amplitude values.
Syntax
:POWer? [<expected_value>[,<resolution>]]
Description
When used with a :SCALar command, a single value is returned. The display is
placed in the single-wavelength mode, and the marker is placed on the signal
having a power level that is closest to the
<expected_value>
parameter.
When used with an :ARRay command, an array of amplitudes is returned. The
display is placed in the list-by-power mode.
Returned values are in the current power units. Wavelength units are not
affected.
<expected_value>
Constants
MAXimum Displays the highest power signal
MINimum Displays the lowest power signal
DEFault Displays the signal at the current marker position
Used With <expected_value> <resolution>
SCALar optional ignored
ARRay ignored ignored
CONFigure command
When this function is used with the CONFigure command, the query question mark char-
acter “?”
must
not
be included in the string. However, the FETCh, READ, and MEASure
command are queries and require the question mark. Refer to the examples for this com-
mand.