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 - 4.19 - E-1
2.6 Entering Output Stage Settings
2.6.1 Setting Up Output Stage
In the OS Setup and Rack Controller windows you can enter the basic settings for the out-
put stage.
Select Outputstage A > Setup > OS Setup.
The OS Setup window opens.
OCXO Adjust Setting for adjusting an internal OCXO frequency (for operating mode
"Internal")
The same setting options are available in menu window RF > Synthe-
sizer.
Mute on PPS Fail For setting the behavior in SFN mode in the event of failure of the exter-
nal time reference. The following settings are possible:
– off: The output signal is not suppressed.
– only at startup: the output signal is suppressed at startup until a valid
1 pps signal is recognized; if the 1 pps signal fails after successful
synchronization, the output signal is no longer suppressed.
– after fail delay time: The output signal is suppressed if the 1-pps sig-
nal fails for longer than the period specified at Fail Delay Time
This is the recommended setting for operation in SFN mode.
Mute on Ref. Fail For setting the behavior in SFN and MFN mode in the event of failure of
the external reference frequency source. The following settings are pos-
sible:
– off: The output signal is not suppressed.
– only at startup: the output signal is suppressed at startup until a valid
reference source is detected; if the reference source fails after a suc-
cessful synchronization, the output signal is no longer suppressed
– after fail delay time: The output signal is suppressed if the reference
source fails for longer than the period specified at Fail Delay Time
This is the recommended setting for operation in SFN mode.
Fail Delay Time If a reference source fails, it takes the time given here before the output
signal is suppressed. The setting is only effective if the behavior after fail
delay time is set under Mute on PPS Fail or Mute on Ref. Fail.
Selection: 0 to 24 hours; 0 hours = no delay time
Setting item Explanation