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Programming Commands
CALCulate3 Subsystem
SNR:REFerence:WNUMber
Sets the wave number used for the noise measurement reference in the
signal- to- noise calculation.
Syntax
:CALCulate3:SNR:REFerence:WNUMber{?| {<real> | MINimum | MAXimum}}
<real> is a wave number value that is within the following limits:
Constant
MINimum
MAXimum
Attribute
Preset State: unaffected by
Summary
*RST State: 6451.614 cm
SCPI Compliance: instrument specific
Description
After entering this value, use the SNR:AUTO command to configure the
instrument to use this value in subsequent signal- to- noise calculations.
The wave number entered is converted internally to the corresponding
frequency.
The default units for the <real> parameter are m
4-72
Description
-1
6060 cm
(1650 nm)
-1
7874 cm
(1270 nm)
- 1
(1550 nm)
–1
.
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