R&S SMJ100A, Operating Manual

Page: 270 / 874

Instrument Function
R&S
®
SMJ100A
254 Operating Manual 1403.7458.32 ─ 14
To configure the LF generator signal, see "LF Output Dialog" on page 254. However,
you can also configure the LF signal directly in the settings dialogs of the analog modu-
lations.
The R&S SMJ also provides the configured LF signal at the corresponding output con-
nector, for example as modulation signal source for interconnected instruments.
5.5.12.2 LF Output
► To open the combined "LF Frequency Sweep / LF Output" dialog, select "RF/A
Mod > Configure > LF Generator / Output" or use the MENU key under RF/A Mod.
The combined menu "LF Output / LF Frequency Sweep" provides access to the LF
output configuration in the bottom section. The top sections provide access to the
LF Sweep mode settings, see
Chapter 5.5.13, "LF Frequency Sweep" ,
on page 255.
The remote commands required to define these settings are described in Chap-
ter 7.16.10, "SOURce:LFOutput Subsystem" , on page 737.
LF Output Dialog
State - LF Output
Activates the LF output. This setting has no effect on the modulations.
The modulation signal is output at the LF OUTPUT connector of the instrument.
Remote command:
[:SOURce]:LFOutput[:STATe]
on page 740
Output Voltage - LF Output
Sets the voltage (peak) of the LF output signal.
Remote command:
[:SOURce]:LFOutput:VOLTage
on page 746
LF Gen Frequency
Sets the frequency of the LF generator.
This setting affects all analog modulations which use the LF generator as the internal
modulation source.
Remote command:
[:SOURce]:LFOutput:FREQuency
on page 738
RF Signal and Analog Modulations - RF Block