Rohde & Schwarz 2112.4100.02, Начало работы

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Sample Application
R&S
®
SFE100
36 Getting Started 2112.4122.62 ─ 13
8 Sample Application
The following example involves the following main steps:
●
Feed an MPEG2 transport stream to the R&S SFE100 using the serial interface 1
(TS1 IN, see Chapter 5.2.2, "TS1 IN / TS2 IN" , on page 21) on the rear panel.
●
This MPEG2 transport stream undergoes channel encoding and modulation for
transmission in compliance with the DVB-C specification. To achieve this, perform
the following step-by-step instructions. The involved settings are summed up in
Table 8-1 .
●
The result is output as an RF signal on the RF output.
Table 8-1: Involved settings
Parameter Value
Center frequency 330 MHz
Level -20.0 dBm
Transmission standard DVB-C
Constellation 64 QAM
Symbol rate 6.9 MS/s
Roll off 0.15
If you connect an external monitor, keyboard and mouse (see Chapter 6.3, "Connect-
ing External Devices" , on page 29) or operate the R&S SFE100 using an external com-
puter, you can use the graphical user interface. The following step-by-step instructions
describe how to perform the sample application. If your R&S
SFE100 provides a dis-
play and keys on the front panel (models 02 and 03), you can also use those for opera-
tion. The involved steps are described in
Chapter 8.1, "Using Display and Keys on the
Front Panel" , on page 41.
If your model provides a display and keys on the front panel, you can alternatively pro-
ceed as described under
Chapter 8.1, "Using Display and Keys on the Front Panel" ,
on page 41.
An explanation of the graphical user interface and information on how to select items,
open lists and enter parameters are provided in the user manual or the help system.
Selecting the transmitter application (TX)
1. In the "HARDKEY" menu, select "APPL".
2. Select the TX application (DVB-C transmission is a transmitter application).
3. Press the ENTER key.
The TX application is displayed.
Setting the output frequency
1. In the tree, select the "FREQUENCY" menu.