Agilent Technologies PSG Manual de instrucciones Pagina 258

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Command Reference
Frequency Modulation Subsystem ([:SOURce])
Chapter 4244
Frequency Modulation Subsystem ([:SOURce])
:FM[1]|2...
Supported PSG-A Series
[:SOURce]:FM[1]|2...
This prefix enables the selection of the FM path and is part of most SCPI commands
associated with this subsystem. The two paths are equivalent to the
FM Path 1 2 softkey.
FM[1]
FM Path 1 2 with 1 selected
FM2
FM Path 1 2 with 2 selected
When just FM is shown in a command, this means the command applies globally to both
paths.
Each path is set up separately. When a SCPI command uses FM[1], only path one is
affected. Consequently, when FM2 is selected, only path two is set up. However, the
deviation of the signals for the two paths can be coupled.
Deviation coupling links the deviation value of FM[1] to FM2. Changing the deviation
value for one path will change it for the other path.
These two paths can be on at the same time provided the following conditions have been
met:
DUALsine or SWEPtsine is not the selection for the waveform type
each path uses a different source (Internal 1, Internal 2, Ext1, or Ext2)
FM2 must be set to a deviation less than FM[1]
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