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4-14
Programming
Making Measurements
Measure delta, drift, and signal-to-noise
To select a measurement, use one of the following STATe commands:
CALC3:DELT:POW:STAT
(delta power)
CALC3:DELT:WAV:STAT
(delta wavelength)
CALC3:DELT:WPOW:STAT
(delta power and wavelength)
CALC3:DRIF:STAT
(drift)
CALC3:SNR:STAT
(signal-to-noise ratios)
CALC3:ASNR:STAT
(signal-to-noise ratio averaging)
If you select a drift measurement, you can additionally select one of the fol-
lowing additional states:
CALC3:DRIF:DIFF:STAT
(difference)
CALC3:DRIF:MAX:STAT
(maximum drift)
CALC3:DRIF:MIN:STAT
(minimum drift)
CALC3:DRIF:REF:STAT
(drift reference values)
The :CALCulate3:DRIFt:PRESet command turns off the minimum, maximum,
difference, and reference states but leaves the drift state on.
Attempting to turn more than one state on at a time results in a
“–221 Set-
tings Conflict”
error.
The *RST and SYSTem:PRESet commands turn all calculations off.
CALCulate3:PRESet turns off any CALCulate3 calculations.