Filter
Top Products
4-49
Programming Commands
CALCulate3 Subsystem
DATA?
Queries the data resulting from delta, drift, and signal- to-noise mea-
surements.
Syntax
:CALCulate3:DATA? {POWer | FREQuency | WAVelength | WNUMber}
Argument Description
POWer Queries the array of laser-line powers after the calculation is
completed.
FREQuency Queries the array of laser-line frequencies after the calculation is
completed.
WAVelength Queries the array of laser-line wavelengths after the calculation is
completed.
WNUMber Queries the array of laser-line wave numbers after the calculation
is completed.
Attribute
Summary
Preset State: not affected
SCPI Compliance: standard
Query Only
Description The data returned by the query depends upon which calculation state
is on. If no calculation state is on, an error is generated. The returned
data is comma delimited. The following string is a typical example of
six values returned when POWer is specified from a delta power mea-
surement:
-7.42833100E+000,-1.00087200E+000,-2.52121400E+000,
-3.41918900E+000,-3.80437200E+000,-6.36282900E+000
Notice that only measurement values are returned to the computer.
There is no first value that indicates the number of values contained
in the string as there is, for example, with the FETCh, READ, and
MEASure commands. Use the CALC3:POIN? query to determine the
number of points the CALC3:DATA? query returns.
In the SNR or ASNR calculation, only the POWer argument is valid.
The other arguments will generate a “Settings conflict” error. Use the
CALC2:DATA? query to retrieve the signal wavelengths and powers.