User's Manual Part 1
Table Of Contents
- System Manual
- R&S®NV830x DTV Transmitters ATSC
- Volume 1
- Contents
- Safety Instructions
- Design and Characteristics
- Contents
- 1 Design and Function
- 2 Specifications
- Installation
- Contents
- 1 Equipment Supplied 1
- 2 Overview 3
- 3 Setting Up Transmitter 4
- 4 Ventilation System 9
- 5 AC Power Supply 14
- 6 Amplifiers 19
- 7 Connecting Antenna/Dummy Antenna to RF Connector 20
- 8 Connection Panel 23
- 1 Equipment Supplied
- 2 Overview
- 3 Setting Up Transmitter
- 4 Ventilation System
- 5 AC Power Supply
- 6 Amplifiers
- 7 Connecting Antenna/Dummy Antenna to RF Connector
- 8 Connection Panel
- Contents
- Commissioning
- Contents
- 1 General Information 1
- 2 Preparing for Transmitter Startup 3
- 2.1 Preparing for Local Operation 3
- 2.2 Checking and Setting System and Operating Parameters 3
- 2.3 R&S NetCCU800 3
- 2.4 Setting Transmitter Type 9
- 2.5 Entering Exciter Settings 11
- 2.6 Entering Output Stage Settings 19
- 2.7 Setting Transmitter Output Power 21
- 2.8 Calibrating Power Displays 22
- 3 Completion of Startup Procedure 26
- 4 Precorrection 31
- 1 General Information
- 2 Preparing for Transmitter Startup
- 2.1 Preparing for Local Operation
- 2.2 Checking and Setting System and Operating Parameters
- 2.3 R&S NetCCU800
- 2.4 Setting Transmitter Type
- 2.5 Entering Exciter Settings
- 2.6 Entering Output Stage Settings
- 2.7 Setting Transmitter Output Power
- 2.8 Calibrating Power Displays
- 3 Completion of Startup Procedure
- 4 Precorrection
- Contents
Chapter 4 Commissioning
2098.0188.72 - 4.1 - E-1
1 General Information
Transmitters are put into operation by means of the graphical user interface of the R&S
NetCCU800.
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:
Check whether all the modules delivered have been correctly installed and connected
as necessary.
Check whether the transmitter has been correctly connected to the AC supply. Please
note:
Connection in general
– Power feed, rack ground, air cooling system, 50 test load (dummy antenna) in ap-
propriate cases, power-handling capacity P > nominal transmitter power, directional-
coupler filter, matrix or antenna
Connections involving RF carrier loops and fault messages
– Set up the following jumpers/connections on the power distribution board connectors
(the name of the connector concerned is printed on the board).
RF carrier loop in operation - X41 1-2
RF Carrier loop on standby - X41 3-4
Fault message for rack absorber - X42 1-2
Fault message for system absorber - X42 3-4
(In the case of multi-rack transmitters the overtemperature switches of the respective
RF absorbers are connected to the absorber fault message inputs.)
Fault message for external cooling - X44 1-2
If customer instruments having interlock circuit outputs such as control monitoring
are present, you can loop in these instruments in place of the wire jumpers.
Emergency-off switch X7 (if available)
Motor protection switches to be set at 5 A
Check the phase sequence of the AC supply voltage.
Switch off the main disconnect switch Q1, together with all motor protection switches
and automatic line fuses.
Check that all screws and nuts are securely fastened, especially those on the transmitter
RF output.