Technical data

598 Agilent Infiniium 9000 Series Oscilloscopes Programmer's Reference
25 Measure Commands
:MEASure:NOISe:RN
Command
:MEASure:NOISe:RN {ON, <RNrms Zero>, <RNrms One> | OFF}
The :MEASure:NOISe:RN command can specify a known amount of random
noise. When used, the remaining amount of the total noise measured is
reported as periodic interference (PI).
This command is used in situations when crosstalk aggressors influence
the random noise measured on a signal. If the random noise on a signal is
measured without the aggressor signal crosstalk, this known amount of
random noise can be specified when measuring the noise again with the
crosstalk aggressors.
• ON — Enables a specified amount of random noise.
• <RNrms Zero> — The known amount of "zeros" random noise.
• <RNrms One> — The known amount of "ones" random noise.
• OFF — Disables the specification of random noise amounts.
Specified amounts of "ones" and "zeros" random noise is shown in the
noise measurement results (see page 592) as "RN(rms specified)".
Example This example specifies 100
μV of known "zeros" random noise and 200 μV
of known "ones" random noise.
myScope.WriteString ":MEAS:NOISE:RN ON, 100e-6, 200e-6"
Query :MEASure:NOISe:RN?
The :MEASure:NOISe:RN? query returns the specified RN settings.
Returned Format
[:MEASure:NOISe:RN] {ON, <RNrms Zero>, <RNrms One> | OFF}<NL>
Example This example places the specified RN settings in the
strKnownRandomNoise variable and displays it on the computer's screen.
myScope.WriteString ":SYSTem:HEADer OFF" ' Response headers off.
myScope.WriteString ":MEASure:NOISe:RN?"
strKnownRandomNoise = myScope.ReadString
Debug.Print strKnownRandomNoise
NOTE
This command is only available when the EZJIT Complete software is installed.