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 3 Installation
2098.0188.72 - 3.15 - E-1
Note The recommended fuse ratings specified here apply to a power cable length of 20 m, a
maximum ambient temperature of 45 °C and a minimum undervoltage of 320 V. The default
setting of 5 A for the overcurrent tripping element at the motor protection switch MUST be
observed.
5.1 Connecting Transmitter Ground
A ground bolt is located on the bottom of the transmitter rack, and is easily accessible from
the front.
Secure the external ground conductor to the ground bolt using the ground nut.
Fig. 10 Ground connection on transmitter rack
5.2 Connecting AC Power Cable
The external power supply is connected for each rack directly to its main switch. The main
switch completely isolates the rack from the AC supply. The connection is made using a 5-
wire cable (three phases, neutral line, protective line).
R&S NV8303 3VL17 02-1DD33... 20 A 300 A 2.5 mm
2
/ AWG 10
a)
R&S NV8304 3VL17 03-1DD33... 25 A 300 A 4.0 mm
2
/ AWG 10
a) AWG 10 according to UL/CSA is needed due to I(undervoltage) > 16 A; asymmetrical power distribution due
to add-on equipment
WARNING!
The rack must be connected to the station's main ground terminal.
Backup fuse Setting value Fixed value Line cross-section
System type
Siemens auto-
matic line fuse,
e.g.
Overload
trip
Short-circuit
trip
VDE / UL