Agilent Technologies Signal Analyzer N9030a - Manual (Page 1462)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
View/Display
More Information
In Zone Span, the window with the focus (the selected window) is the window which updates.
You can tell which window is selected because the selected window has a thick green border
around it. When you enter the Zone Span view, the focus is always in the Zone Window, so it is
the window which is updating. To change the focus (switch between windows), press the Next
Window key located below the display. Single and Continuous settings apply, so if the analyzer
is in Single, no sweep actually happens until it is initiated or you go to Continuous.
The selected window is the window to which virtually all key presses and SCPI commands are directed.
Most key functions like Center Frequency, Ref Level, etc, apply only to the selected window. Similarly,
any traces which are exported or queried while in Zone Span will return the data from the currently active
window. Because of this dependency, it is important to allow the SCPI system to synchronize after
switching windows. Therefore, if you have just switched windows via SCPI (using the :DISP:WIND
function) you should wait at least one second before sending any window-dependent command, to
ensure that SCPI will direct the command to the correct window.
Transition Rules
When you enter the Zone Span view, the top window of Zone Span takes on all of the traces,
markers and settings that were present in the Normal View. The Zone Center is the same as the
analyzer Center Frequency, and the Zone Span is 10 % of the analyzer Span.
When you leave the Zone Span View, the current window traces and settings carry over to the
next view. The traces from the other window will all now be gone. To mitigate this fact, we note
that whenever you save state while in Zone Span, and then recall the state, Zone Span comes back
just as it was when you saved the state, including all trace data and settings for both windows (of
course, any traces that were updating when you did the save will load in an updating state, so
their data will be erased after the first sweep). So if the data in both windows is important to
preserve, make sure you put the traces in View and save the state before you exit.
Display Trace
You can specify which spectrogram trace to display in the trace window by using the Display
Trace function. This function determines which of the 300 traces stored in the Spectrogram is
currently being viewed in the trace window. Display Trace 0 shows the “live” trace. See the
description of Spectrogram in the View menu for more detail on Display Trace.
This key only appears in the Spectrogram View. If the SCPI command is sent to any other View, it
is accepted without error but you won’t see the result until you go back to the Spectrogram View.
Key Path Trace
Scope Meas Local
1462 Remote Language Compatibility Measurement Application Reference