Rohde & Schwarz R&S SGS100A - Page 96

Signal generator settings
R&S
®
SGS100A
96User Manual 1173.9105.02 ─ 13
quency source for the synthesizer. Moreover, an external reference signal source can
be connected to the REF/LO IN connector of the instrument.
Refer to Figure 7-9 for visualization of the signal flow.
Access:
► Select "SGMA-GUI > Instrument Name > Reference Oscillator".
Ref. Oscillator Source/Ext Ref On/Off
Determines whether the internal built-in oscillator (TXCO or OXCO) is used as a refer-
ence source or if an external reference is used. The internal reference oscillator OCXO
requires the additional option R&S SGS-B1.
To feed in an external instrument reference, use the input connector "REF/LO IN". To
output the reference frequency at the output "REF/LO OUT", select "SGMA-GUI >
Instrument Name > Ref. Oscillator > REF/LO Output > REF".
See also Chapter 11.4, "How to configure the reference oscillator source",
on page 165.
"Int"
The internal reference signal of 10 MHz is used.
"Ext"
An external reference signal is used. The frequency of the external
reference signal must be selected with the parameter "SGMA-GUI >
Instrument Name > Ref. Oscillator > Ex. Ref. Input Frequency".
Remote command:
[:SOURce]:ROSCillator:SOURce on page 283
Ext. Ref. Input Frequency
Available only for "Source > Ext".
Selects the frequency of the external reference signal.
Remote command:
[:SOURce]:ROSCillator:EXTernal:FREQuency on page 282
Reference oscillator