Specifications
Table Of Contents
- Title Page
- 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
Theory of Operation APEX Exciter Digital Assembly Overview
Page: 4-4 888-2604-001 03/08/07
WARNING: Disconnect primary power prior to servicing.
Figure 4-2 APEX Exciter - Signal Flow Block Diagram
RF Output
Amplifier
Up Converter
(double converted)
Multiple
Input
Down Converter
(double converted)
RF
Switch
Down Converter Board
PLL Board
1st
L.O.
2nd
L.O.
10 MHz
Reference
Exciter Sample Input
PA Sample Input
HPF Sample Input
Exciter RF
Output
DAC
ADC
Adaptive
Precorrector
Board
FPGA Modulator
Board
ASI Transport
Stream Input
Top (Analog) Side
UDC Interface Board
(Controls Up Converter, PLL
and Down Converter Boards)
Controller
Board
Control Signals
To and From all
Digital Boards
Control Signals
To and From
Front Panel
Display Board
Bottom (Digital) Side
Analog
Loopback
External
1PPS Input
Oscillator
10 MHz10 kHz