3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
NOTE
For X-Series software versions earlier than A.10.01, hardware triggering was
unavailable in stepped tracking at frequencies above 3.6 GHz, so above 3.6
GHz, software triggering was always used. This is no longer the case.
Remote Command
:SOURce:TRIGger:TYPE BUS | EXTernal[1] | EXTernal2
:SOURce:TRIGger:TYPE?
Example Select instrument external trigger 1 in and out for point trigger synchronization with selected source:
:SOUR:TRIG:TYPE EXT1
Dependencies If an internal Tracking Generator is selected, then this menu is unavailable, Additionally, the External 1
and External 2 Trigger keys on the Spectrum Analyzer are released from any grayout that may have
been forced on them by the external source Point Trigger selection
In some models, there is no second External input. In these models, the External 2 selection does not
appear and the EXTernal2 parameter will generate a “Hardware missing; Not available for this model
number” message
Couplings The source control point trigger selection can select external trigger 1 or 2 in for synchronized point
triggering. This can conflict with the selection under the Trigger hardkey, if it has External 1 or 2
selected. If there is a conflict when the selection is made under the Point Trigger menu, the Trigger
selection under the Trigger hardkey changes to Free Run
Preset Unaffected by Mode Preset but set to EXTernal1 by Source Preset or Restore Input/Output
Defaults
State Saved Part of the Input/Output system, which means it is Loaded and Saved with state
Tracking Setup Details
When an external source is operating in Tracking Mode, operation can be greatly
enhanced by using hardware triggers. Below is a typical connection diagram
showing a hardware handshake using Trigger 1 inputs and outputs on the
instrument (trigger 2 in and out is also a valid connection).
462 Spectrum Analyzer Mode User's &Programmer's Reference
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