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System Functions
Recall
Recall
The Recall menu lets you choose what you want to recall, and where you want to recall it from. Among
the types of files you can recall are States and Traces. In addition, an
Import (Data) option lets you
recall a number of data types stored in CSV files (as used by Excel and other spreadsheet programs).
The default paths for Recall are data type dependent and are the same as for the Save key.
State
The Recall State menu lets you choose a register or file from which to recall the state.
Key Path: Front-panel key
Notes: No remote command for this key specifically, but the :MMEM:LOAD
command is available for specific file types. An example is
:MMEM:LOAD:STATe <filename>.
If you try to recall a State file for a mode that is not licensed or not available in
the instrument, an error message will occur and the state will not change.
Backwards Compatibility Notes: In legacy analyzers, it was possible to load a state without affecting the trace
data, limit lines or correction data. Similarly (since User Preset is actually
loading a state), it was possible to do a User Preset without affecting the trace
data, limit lines or correction data.
In the X-Series, “state” always includes all of this data; so whenever state is
loaded, all of the traces, limit lines and corrections are affected. Although
this differs from previous behavior, it is desirable behavior, and should not
cause adverse issues for users.
Backwards Compatibility Notes: Recall for the X-Series supports backward compatibility in the sense that you
can recall a state file from any X-Series model number and any version of
X-Series software. If you try to recall a state file onto an instrument with less
capability than what was available on the instrument during the save, the
recall will ignore the state it doesn’t support and it will limit the recalled
setting to what it allows.
Example: if the saved state includes preamp ON, but the recalling instrument
does not have a preamp; the preamp is limited to OFF. Conversely, if you save
a state without a preamp, the preamp is OFF in the state file. When this saved
file is recalled on an instrument with a licensed preamp, the preamp is
changed to OFF. Another example is if the saved state has center frequency set
to 20 GHz, but the instrument recalling the saved state is a different model and
only supports 13.5 GHz. In this case, the center frequency is limited along
with any other frequency based settings. Since the center frequency can’t be
preserved in this case, the recall limiting tries to at least preserve span to keep
the measurement setup as intact as possible.
Note that there is no state file compatibility outside of the X-Series. For
example, you cannot recall a state file from ESA or PSA.
Initial S/W Revision: Prior to A.02.00