Technical data

642 Agilent Infiniium 9000 Series Oscilloscopes Programmer's Reference
25 Measure Commands
:MEASure:RJDJ:RJ
Command
:MEASure:RJDJ:RJ {ON, <RJrms> | OFF}
The :MEASure:RJDJ:RJ command can specify a known amount of random
jitter. When used, the remaining amount of the total jitter measured is
reported as periodic jitter (PJ).
This command is used in situations when crosstalk aggressors influence
the random jitter measured on a signal. If the random jitter on a signal is
measured without the aggressor signal crosstalk, this known amount of
random jitter can be specified when measuring the jitter again with the
crosstalk aggressors.
• ON — Enables a specified amount of random jitter.
• <RJrms> — The known amount of random jitter.
• OFF — Disables the specification of known random jitter.
The amount of random jitter is shown in the jitter measurement results
(see page 629) as "RJ(rms specified)".
Example This example specifies 500 fs of random jitter.
myScope.WriteString ":MEAS:RJDJ:RJ ON, 500e-15"
Query :MEASure:RJDJ:RJ?
The :MEASure:RJDJ:RJ? query returns the specified RJ settings.
Returned Format
[:MEASure:RJDJ:RJ] {ON, <RJrms> | OFF}<NL>
Example This example places the specified RJ settings in the strKnownRandomJitter
variable and displays it on the computer's screen.
myScope.WriteString ":SYSTem:HEADer OFF" ' Response headers off.
myScope.WriteString ":MEASure:RJDJ:RJ?"
strKnownRandomJitter = myScope.ReadString
Debug.Print strKnownRandomJitter
NOTE
This command is available when the EZJIT+ software is installed.