Keysight Technologies 86120B, User Manual

Page: 186 / 273

184
Programming Commands
CALCulate3 Subsystem
DELTa:WPOWer[:STATe]
Turns the delta wavelength and power measurement mode on and off.
Syntax
:CALCulate3:DELTa:WPOWer[:STATe]{?| {ON | OFF | 1 | 0}}
Attribute Summary Preset State: off
*RST State: off
SCPI Compliance: instrument specific
Description When on, the wavelength of the reference laser line is subtracted from the wave-
length values of all laser lines except the reference. The power value of the reference
is subtracted from the power values of all laser lines except the reference.
For the CALC3:DATA? query, the power data returned is the array of powers nor-
malized to the power of the reference laser line. The power of the reference laser
line is returned as an absolute power (unnormalized).
The frequency data is the array of frequency values normalized to the frequency of
the reference laser line. The frequency of the reference laser line is returned as an
absolute frequency (unnormalized).
Note
Only one STATe command can be turned on at any one time. Attempting to turn
more than one state on at a time results in a “–221 Settings Conflict” error.
Refer to “Measure delta, drift and signal-to-noise” on page 94 for additional
information on selecting measurements.