Rohde & Schwarz SR8000 Series, Системное руководство

Страница: 65 / 199

Chapter 4 Putting into Operation
5300.9677.72 - 4.4 - EN-4
1 General Information
Transmitters are put into operation via the transmitter graphical interface.
1.1 Preparations
Before you can put a transmitter into operation, it must first have been fully installed. Check
the following list to ensure that all connections have been correctly made:
) Review whether the transmitter has been correctly installed and connected (modulation
feed, remote-control interfaces).
) Check whether the transmitter has been correctly connected to the AC supply. Please
note also:

Connection in general
– Power feed, rack ground (optional), 50
Ω
test load (dummy antenna) in appropriate
cases, power-handling capacity P > nominal transmitter power, directional-coupler
filter, matrix or antenna

Connections for interlock circuits
– Set up the following jumpers/connections on the transmitter connectors. (The name
of the connector concerned is located on the rear panel.)
Interlock circuit for exciter RF blanking -
X23B 1-9
) Check that all screws and nuts are securely fastened, especially those on the transmitter
RF output.
1.2 Requirements
Checking transmission frequency and operating mode
1. Remove the interlock loop connection.
2. Connect an antenna to the RF output of the transmitter.
3. Connect the transmitter to the AC supply (socket, frame connector).
The exciter boots with the most recently set parameters.
ATTENTION!
The transmitter starts up with the most recently set parameters.
Activate the RF carrier loop in order to exclude the possibility of damage due to incorrect
frequency settings (open the connection between pins 1 and 9 on connector
X23B ).
Check whether the exciter is set to the right frequency.