Performing Configuration Tasks
R&S
®
SGT100A
268
User Manual 1176.8674.02 ─ 07
9.3 How to Define the Signal at the REF/LO OUT Connec-
tor
The reference oscillator and the LO use the same REF/LO IN connector. Hence, it is
not possible to use both an external reference source and an external LO source signal
at the same time.
The signal at the REF/LO OUT connector also depends on the selected reference
oscillator and LO sources. The following table gives an overview of this dependency.
Table 9-1: Selection available at the REF/LO OUT connector depending on the LO and reference
oscillator sources
LO coupling source
Ref. oscillator source
Int
"Ext"
"Int"
"OFF/REF/LO"
"OFF/LO"
"Ext"
"OFF/REF/LO"
Combination not possible
To define the signal at the REF/LO OUT connector
1. In the "Frequency / Phase > Local Oscillator (LO) Coupling" dialog, select the "LO
Source" as required.
2. In the "Reference Oscillator" dialog, select the "Ref. Oscillator Source" as required.
3. In the "Frequency / Phase > Local Oscillator (LO) Coupling" dialog, set the
"REF/LO Output".
Consider the dependencies, see
.
9.4 How to Create and Store ARB Test Signals
If your test case requires a simple sine or square test file, consider to use the provided
ARB test signals.
1. Select "Baseband > ARB >General"
2. Select "Create Test Signal > Sine".
3. In the "Sine Test Signals"dialog, adjust the settings as required.
4. Select "Generate Signal File", navigate through the directory tree
(e.g.
/var/user/
), enter a file name (e.g.
sine_waveform
) and select "Save".
The R&S
SGT stores the generated waveform file and automatically loads it in the
ARB.
5. Select "ARB > State > On".
The R&S
SGT processes the waveform file.
How to Create and Store ARB Test Signals
