Agilent Technologies Signal Analyzer N9030a - Manual (Page 1146)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
SPAN X Scale
The center frequency for the lower window is limited by the start and stop frequencies in the
upper window. You cannot move the zoom region out of the upper window. Consequently, if the
zoom region hits either the left or right edge of the upper window, the Zoom Span starts to shrink
to keep the zoom region from going outside the upper window.
The Zoom Span value is displayed in the lower right corner of the zoom window (below the
graticule) when the frequency entry mode is Center/Span (pressing Center Freq or Span sets the
frequency entry mode to Center/Span). When the frequency entry mode is Start/Stop, Zoom Stop is
displayed in this lower right annotation position (pressing Start Freq or Stop Freq sets the
frequency entry mode to Start/Stop).
Key Path SPAN X Scale, Zone
Remote Command [:SENSe]:FREQuency:TZOom:SPAN <frequency>
[:SENSe]:FREQuency:TZOom:SPAN?
Example :FREQ:TZO:SPAN 20 MHz
Notes As the Zoom Span increases, if the edge of the zoom region hits either edge of the graticule, then
as the Zoom Span continues to increase, the Zoom Center will change to keep the zoom region
from leaving the upper window.
Dependencies Only appears in the Trace Zoom View of the Swept SA measurement. If the SCPI command is
sent in other Views, gives an error.
Preset On entry to Trace Zoom, Zoom Span is 10% of the span of the upper window. So if you do a
Mode Preset and then immediately go into Trace Zoom, Zoom Span is 10% of the Span Preset
value listed in the table under the Span key description.
State Saved Saved in instrument state
Min 10 Hz
Max The Zoom Span is constrained by the top window (analyzer) span. It cannot get so large that
Zoom Start goes below the analyzer Start Freq, or so that Zoom Stop goes above the analyzer Stop
Freq. Thus, the limit is 2*(Zoom Center – Start Freq) or 2*(Stop Freq-Zoom Center), whichever is
smaller.
Default Unit Hz
Status Bits/OPC
dependencies non-overlapped
Initial S/W Revision A.07.01
Full Span
Changes the frequency span of the analyzer to the Preset frequency span of the analyzer and sets
the Frequency entry mode to Center/Span.
1146 Remote Language Compatibility Measurement Application Reference