R&S SGT100A User Manual page 234

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R&S SGT100A
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 SGT-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 > RF > Ref. Oscillator > REF/LO Output > REF".
"Int"
"Ext"
Remote command:
[:SOURce]:ROSCillator:SOURce
Ext. Ref. Input Frequency
Available only for "Source > Ext".
Selects the frequency of the external reference signal.
Remote command:
[:SOURce]:ROSCillator:EXTernal:FREQuency
Synchronization Bandwidth
Available only for "Source > Ext".
Selects the synchronization bandwidth for an external reference signal. The wideband
setting is provided for using good reference sources of high spectral purity.
"Wide"
"Narrow"
Remote command:
[:SOURce]:ROSCillator:EXTernal:SBANdwidth
User Manual 1176.8674.02 ─ 07
The internal reference signal of 10 MHz is used.
An external reference signal is used. The frequency of the external
reference signal must be selected with the parameter "SGMA-GUI >
Instrument Name > RF > Ref. Oscillator > Ex. Ref. Input Frequency".
on page 470
Synchronization bandwidth is app. 250 Hz.
Synchronization bandwidth is app. 40 Hz.
Signal Generator Settings
RF Settings
on page 470
on page 470
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