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Programming Commands
CALCulate3 Subsystem
ASNR[:STATe]
Turns the average signal-to-noise ratio on or off.
Syntax
:CALCulate3:ASNR[:STATe] {?|{ ON | OFF | 1 | 0 }}
Attribute
Summary
Preset
State: off
*RST State: off
SCPI Compliance: instrument specific
Description
This command turns the average signal-to-noise calculation on or off. Only
one of the CALCulate3 calculations (ASNR, DELTa, DRIFt, or SNR) can be
turned on at a time. Turning on the ASNR calculation while another calcula-
tion is on will generate a “Settings conflict” error.
When the calculation is first turned on, the lines measured in the current mea-
surement will be used as the reference values for the signal-to-noise ratio.
Subsequent measurements will average the noise values. The signal values are
not updated until the number of measurements used to average the noise is
greater than or equal to the COUNt value.
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 4-14for additional information on selecting
measurements.