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Input/Output
Input/Output variables - Preset behavior
Virtually all the input/output settings are NOT a part of mode preset. They can be set to their default
value by one of the three ways - by using the Restore Input/Output Defaults key on the first page of the
input/output menu, by using the System->Restore System Defaults->Input/Output Settings or by using
the System -> Restore System Defaults->All. Also, they survive a Preset and a Power cycle.
A very few of the Input/Output settings do respond to a Mode Preset; for example, if the Calibrator is on
it turns off on a Preset, and if DC coupling is in effect it switches to AC on a Preset. These exceptions are
made in the interest of reliability and usability, which overrides the need for absolute consistency.
Exceptions are noted in the SCPI table for the excepted functions.
RF Input
Selects the front-panel RF input port to be the test set signal input. If RF is already selected, pressing this
key accesses the RF input setup functions.
Example: INP:MIX INT
INP:MIX?
Notes: 1. In legacy analyzers you choose between the Internal mixer or an External
Mixer. In the X-Series, the External Mixer is one of the choices for the
Input and hence is selected using the FEED command (:SENSe:FEED
EXTMixer).
For compatibility, the INPut:MIXer EXTernal|INTernal legacy command is
mapped as follows:
1. When INPut:MIXer EXTernal is received, SENSe:FEED EMIXer is
executed.
2. When INPut:MIXer INTernal is received, SENSe:FEED RF is executed.
3. When INPut:MIXer? is received, the response will be INT if any input
other than the external mixer is selected and EXT if the external mixer is
selected
Preset: INT
Backwards Compatibility Notes: 1. PSA supports the following SCPI Command :
:INPut:MIXer:TYPE PRESelected|UNPReselect
:INPut:MIXer:TYPE?
PXA does not support the :INPut:MIXer:TYPE command.
Initial S/W Revision: A.08.01
Key Path:
Input/Output
Example: [:SENSe]:FEED RF