Programming instructions

Command Reference
Frequency Modulation Subsystem ([:SOURce])
Chapter 4 245
:FM:INTernal:FREQuency:STEP[:INCRement]
Supported PSG-A Series
[:SOURce]:FM:INTernal:FREQuency:STEP[:INCRement] <num>
[:SOURce]:FM:INTernal:FREQuency:STEP[:INCRement]?
This command sets the step increment for the internal frequency modulation.
The variable <num> sets the entered value in units of hertz.
*RST
Ν/Α
Range 0.5–1E6
Key Entry
Incr Set
Remarks The value set by this command is used with the UP and DOWN choices
for the FM frequency setting. Refer to
“:FM[1]|2:INTernal[1]|2:FREQuency” on page 249 for more
information.
The setting enabled by this command is not affected by signal
generator power-on, preset, or *RST.
:FM[1]|2:EXTernal[1]|2:COUPLing
Supported PSG-A Series
[:SOURce]:FM[1]|2:EXTernal[1]|2:COUPling AC|DC
[:SOURce]:FM[1]|2:EXTernal[1]|2:COUPling?
This command sets the coupling for the frequency 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 The 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.
Choices AC DC