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Query Response
MEASure{:ARRay | [:SCALar]} :POWer:FREQuency?
[<expected_value>[,<resolution>]]
Description
The following line is an example of a returned string
when :MEAS:SCAL:POW? MAX is sent:
-5.88346500E+000
If six laser lines are located and :MEAS:ARR:POW? is
sent, the following string could be returned. Notice that
the first returned number indicates the number of laser-
line values returned in the query.
6,-1.37444400E+001,-1.10996100E+001,-9.62396600E+000,
-7.94024500E+000,-7.01303200E+000,-1.04536200E+001
Returns frequency values.
Used With
SCALar
ARRay
a. Although ignored, this argument must be present if the resolution
argument is specified.
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
frequency that is closest to the <expected_value>
parameter. Default units for <expected_value> param-
eter are in Hz. When used with an :ARRay command, an
array of frequencies is returned. The display is placed in
the list-by-wavelength mode.
The <resolution> parameter sets the resolution of the
measurement. It is a unitless number whose value will
be limited to either 0.01 or 0.001 (whichever is closer).
MAXimum resolution is equivalent to the FAST measure-
ment update mode. MINimum resolution is equivalent
to the NORMAL measurement update mode.
Returned values are in Hz (display is in THz). Power
units are not affected.
Measurement Instructions 5-13
<expected_value>
optional
a
ignored
<resolution>
optional
optional
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