Agilent Technologies Signal Analyzer N9030a - Manual (Page 1150)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
SPAN X Scale
Signal Track can only function properly if the trace Marker 1 is on is updating. Therefore if Signal
Track is on and the trace Marker 1 is on is put into View, Signal Track is turned off and the Signal
Track key grayed out. Whenever the trace Marker 1 is on is not updating, the Signal Track key is
grayed out.
Signal Track is only available in SA measurement . It should be grayed out in other
Measurements in the Spectrum Analyzer mode.
Couplings Signal Track can only function properly if the trace Marker 1 is on, is in Trace Update = Active.
Therefore if the trace Marker 1 is on is in Update Off when Signal Track is turned on, it is
changed to Update On. If the trace Marker 1 is on is set to Update Off while Signal Track is on, it
turns off Signal Track.
Preset OFF
State Saved Saved in instrument state
Backwards Compatibility
Notes 1. Signal Track is now in the Span menu. It was located in the Frequency menu in ESA and PSA,
under its own hardkey in 859xA, under Marker Function (and called Marker Track) in
859xB/C/D/E. It was placed in Span in the X-Series because of the value that one of Signal
Track’s features, Auto Zoom, provides when changing span (see below).
2. In ESA and PSA the Span Zoom key (in the Span menu) turned on Signal Track in order to let
the user enter a new span with Auto Zoom on; by putting Signal Track into the Span menu we
achieve the same functionality more clearly. Hence Span Zoom is eliminated as a separate
function. There never was a remote command for Span Zoom so there are no SCPI issues with
this.
3. Signal Track now obeys the Excursion and Threshold criteria, allowing the user to control the
search better; but this may cause low level signals that could previously be tracked to need
the Excursion and Threshold adjusted.
4. Signal Track is now bound to only Marker 1, and cannot be enabled for any other marker.
ESA/PSA allowed a subopcode to specify the marker to use. In X-Series, no subopcode is
allowed and the marker is always assumed to be marker 1.
5. Signal Track now turns off when it finds an unstable signal. In the past it kept searching
which caused inpredictable results.
Initial S/W Revision Prior to A.02.00
More Information
If marker 1 is off when Signal Track is turned on, marker 1 is turned on in the center of the
screen and a peak search is performed. If marker 1 is already on, it stays on and is used where it
is. If it is Fixed, it is set to Normal.
If you move the marker during Signal Track, a Mkr-> CF is performed and the signal track
function starts over.
1150 Remote Language Compatibility Measurement Application Reference