User's Manual
Table Of Contents
- Table of Contents
- List of Figures
- List of Tables
- 1 Introduction
- 2 Installation
- 3 Navigating the LCD Display Screens
- 3.1 Basic Operating Procedure
- 3.2 Starting Point: The Main LCD Touch Screen
- 3.3 LCD Display Flow Chart
- 3.4 Details of the Exciter Status Screens
- 3.4.1 System Status Screen
- 3.4.2 Transport Stream Status Screen
- 3.4.3 Adaptive Processing Board Status Screen
- 3.4.4 Digital Processing Screens
- 3.4.4.1 Modulator Board Status, Screen 1/2
- 3.4.4.2 ADC and DAC Boards Status, Screen 2/2
- 3.4.4.3 FLO FPGA Status, Summary, Screen 1/5
- 3.4.4.4 FLO FPGA, GPS & Clock Status, Screen 2/5
- 3.4.4.5 FLO FPGA, Transport Stream Status, Screen 3/5
- 3.4.4.6 FLO FPGA, SFN FIFO Status, Screen 4/5
- 3.4.4.7 FLO FPGA, MTI Status, Screen 5/5
- 3.4.5 IF & RF Processing Status Screens
- 3.4.6 System Control Status Screens
- 3.5 Built In Tests
- 3.6 Details of the System Setup Screens
- 3.7 RTAC Operating Procedures, Main Screen.
- 4 Theory of Operation
- 5 Maintenance and Troubleshooting
- 5.1 Exciter Maintenance
- 5.2 Loading Software
- 5.3 Default Settings For DIagnostics Screens
- 5.4 Typical Settings for the More Critical Exciter Setups
- 5.5 Exciter Troubleshooting Flow Charts
- 5.6 General Troubleshooting
- 5.7 System Troubleshooting
- 5.8 Exciter Troubleshooting
- 6 Parts List
- Appendix A Exciter GUI Screen Captures
APEX™ Exciter Incorporating FLO™ Technology
Installation Retrofitting Into Existing Transmitter System
Page: 2-6 888-2604-001 03/08/07
WARNING: Disconnect primary power prior to servicing.
2.5.3.2 Atlas Mobile Transmitter - 2 or More PA Cabinets
When the Atlas Mobile Transmitter has two or more PA cabinets, the feedback signals are
connected as shown in Figure 2-4.
• The HPF feedback sample is taken from the high power filter output coupler.
• The PA sample is taken from the cabinet combiner output coupler.
• If the transmitter system has dual exciters, feedback samples for each exciter are ob-
tained by splitting each sample cable, as shown in Figure 2-4
• The feedback signals at the exciter input should be padded to yield 0 dBm at the high-
est expected transmitter output power. The sample input power range is -30 to 0 dBm.
Figure 2-4 Atlas Mobile Transmitter - Dual PA Cabinets - Dual Exciters
PA
PA Cabinet
Output
Coupler
High
Power
Combiner
Coupler
Cabinet
Combiner
Filter
RFU/
Exciter
Switcher
PA Cabinet
Apex FLO
Exciter
Apex FLO
Exciter
2-Way
Splitter
2-Way
Splitter