Configuring the RF signal
R&S
®
SMM100A
311
User Manual 1179.1341.02 ─ 05
Example: Generating a beamformed signal with two one path Rohde
&
Schwarz
Signal Generators
This example shows a test setup with two generators, each equipped with one path.
Generator 1 = "Internal"; "LO Out > On"
Generator 2 = "External"; "LO Out > Off"
The
Signal Generator 1
uses its internal oscillator signal.
Signal Generator 2
receives
the LO signal from the first instrument. The frequency is assumed to be 2
GHz.
7.9
Reference oscillator
The R&S
SMM100A is equipped with an internal reference oscillator that generates a
reference frequency of 10
MHz. It is used as internal reference source for the synthe-
sizer.
Alternatively, you can apply an external reference signal. If equipped with the required
options, the R&S
SMM100A can process external reference frequency in the range
1
MHz to 100
MHz and the 1
GHz reference frequency.
Regardless of the used reference source (internal or external), the R&S
SMM100A
always provides the configured reference frequency at the output. You can use it, for
example to synchronize several interconnected instruments, see
the reference frequency for instruments synchronization"
on page 316, for an overview
of typical test situations.
The reference oscillator settings are not affected by an instrument preset ([Preset] key
or
*RST
) and the "Save/Recall" function. They are reset only by factory preset.
7.9.1
Required options
R&S
SMM100A base unit equipped with the following options:
●
100
MHz, 1
GHz ultra low noise reference input and output (R&S
SMM-K703)
●
1
MHz to 100
MHz flexible reference input (R&S
SMM-K704)
For more information, see data sheet.
Reference oscillator
