Other topics about Common Settings
The E5052B has seven measurement function: phase noise measurement, spectrum monitor measurement, frequency/power measurement, transient measurement, AM noise measurement, baseband noise measurement and segment phase noise measurement. Because individual measurements differ in their characteristics from one another, the E5052B’s each trigger is used exclusively for a single measurement function.
In other words, only one measurement function can be triggered at a time, and only this function can perform measurement at this time.
The E5052B has a trigger model for each measurement (Trigger System); however, only one triggered measurement can take place at a time. This is because the hardware and the trigger port are shared by seven instruments. For example, even if the continuous initiation mode is enabled for all measurements and the trigger source is set to Internal, only one triggered measurement takes place.
At the default setting, activating a measurement (Window Next or Meas/View > Show Window) is independent of the trigger distribution (Trigger > Trigger to {measurement label}). Even if you change the active window, the trigger is not applied to it until the trigger distribution is changed to the measurement. From the firmware revision A.03.20, the trigger distribution can be linked with the activated measurement (see trigger coupling). This function enables changing the trigger distribution automatically when you change the active window.
Press Trigger > Source.
Select the Trigger Source from the softkey menu list.
Press Trigger > Trigger to {measurement label} to send a trigger to the measurement. By default, Continuous is selected for sweep. You can also hold the trigger by selecting Trigger > Hold can provide a single trigger by selecting Trigger > Single.
This function couples the trigger mode with the active window. You can select the trigger mode coupled or trigger mode uncoupled with the following steps.
When trigger couple is on and trigger signal is entered continuously, the measurement is made immediately and the trace is overwritten after the active window is changed.
To avoid this, set trigger couple to OFF, or change the active window after the trigger is hold.
Press Trigger > Window Couple > ON |OFF. The default setting is OFF.
If you change the active window, the trigger mode changes. There is a possibility that active window changes because of the following operations.
Execute the SCPI.DISPlay.WINDow.ACTive command.
Execute the SCPI.DISPlay.xx.STATe command.
Select the Window Next or Meas/View > Show Window.
Click the measurement window on the screen.
Even if trigger mode is changed in SCPI.TRIGger.MODE command, the active window is not changed.