Configuring the Signal in the RF Domain
R&S
®
SMW200A
498User Manual 1175.6632.02 ─ 16
Example: Introduction to the Overview tab
This example briefly explains the view and the elements of the "Overview" tab of the
two paths (A and B). The tab shows the two common LF output signal connectors,
which are the same in both paths, and the specific modulation settings of the respec-
tive path. Active signals are indicated by thick lines, the inactive signals are illustrated
by dotted lines.
The following modulations are configured:
●
Path A (first image)
Amplitude modulation that is performed with an internally generated trapezoid
wave signal and a superposed external signal.
●
Path B (second image)
Amplitude modulation, performed with the sine signal of the LF Generator 2 and a
superposed noise signal.
Simultaneously, the instrument performs frequency modulation with an LF signal
that is composed of a sine wave (LF Generator 1, path B) and an external signal.
●
LF OUT X (the same in both images)
The LF signal of the LF generator 1 in path A is routed to the first LF output, and
the signal of second LF generator - to the second LF output (see the red lines).
This assignment is not mandatory. It has been chosen randomly and can be
changed arbitrarily.
Figure 7-18: Example: Elements in the analog modulations "Overview" tab
1a, 1b = Modulation dialogs of path A, and path B
2a, 2b = assigned modulation signals to the LF outputs 1 and 2
3a, 3b = modulation signal sources used in path A, and path B
4a, 4b = external input connectors 1 and 2
5a, 5b = LF output connectors 1 and 2
This tab reflects the signal sources of the analog modulations AM, FM and ɸM as in
the corresponding settings dialogs. Therefore, you can also select the signal source as
well as turn a modulation on or off in this tab. Corresponding to the activated modula-
tion, the used signal sources are displayed. Furthermore, the overview also shows the
signals that are routed to one of the LF output connectors.
Analog Modulations