
Command Reference
Phase Modulation subsystem ([:SOURce])
Chapter 4 271
:PM[1]|2:EXTernal[1]|2:COUPling
Supported PSG-A Series
[:SOURce]:PM[1]|2:EXTernal[1]|2:COUPling AC|DC
[:SOURce]:PM[1]|2:EXTernal[1]|2:COUPling?
This command sets the coupling for the phase modulation source through the selected
external input connector.
AC This choice will only pass ac signal components.
DC This choice will pass both ac and dc signal components.
*RST DC
Key Entry
Ext Coupling DC AC
Remarks This command does not change the currently active source or switch
the current modulation on or off. The modulating signal may be the
sum of several signals, either internal or external sources.
:PM[1]|2:EXTernal[1]|2:IMPedance
Supported PSG-A Series
[:SOURce]:PM[1]|2:EXTernal[1]|2:IMPedance <50|600>
[:SOURce]:PM[1]|2:EXTernal[1]|2:IMPedance?
This command sets the input impedance for the selected external input.
*RST
+
5.00000000E
+
001
Key Entry
Ext Impedance 50 Ohm 600 Ohm
Remarks N/A
Choices AC DC
Choices 50 600
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