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
Navigating the LCD Display Screens Details of the System Setup Screens
Page: 3-34 888-2604-001 03/08/07
WARNING: Disconnect primary power prior to servicing.
Exciter Setup, See Section 3.6.2, Exciter Setup Screen, on page 3-35.
Max Mod Crest Factor 13dB See technical manual
Exciter Setup RTAC, See Section 3.6.3, RTAC Setup Screen, on page 3-38.
Max Stretch 3.0dB See technical manual
RTAC Off-Air mode Bypass Bypass or Hold, customer’s choice
Display Setup, See Section 3.6.4, Display Setup Screen, on page 3-41.
Page Title Apex Exciter Customer’s choice
Screen Saver 30 minutes Customer’s choice
Display invert Disabled Customer’s choice
Chart Source TX-Post HPF Normal, but customer’s choice to change.
LCD Contrast 50% Normal, but customer’s choice to change.
External I/O Setup, See Section 3.6.5, External I/O Setup Screen, on page 3-42.
VSWR F/B Low Threshold 0.0V 0.25V is normal, but customer’s choice.
VSWR F/B High Threshold 5.0V Normal, but customer’s choice.
VSWR F/B Level 100% 70% is common, but customer’s choice.
RF Present Cutoff 10mW 50% of normal exciter output power.
Serial Setup page 1, RS 232 Front and Rear, See Section 3.6.6.1, Serial Setup Screen 1 of 3, RS-232, on page
3-45.
Baud Rate 57600 Choice of several, see technical manual
Parity None See technical manual
Data Bits 8 See technical manual
Stop Bits 1 See technical manual
Flow None See technical manual
Protocol Harris See technical manual
Serial Setup page 2, Ethernet, See Section 3.6.6.2, Serial Setup Screen 2 of 3, Ethernet, on page 3-46.
MAC Address 00-00-00-00-00-00 See technical manual
IP address 000.000.000.000 See technical manual
Gateway Address 000.000.000.000 See technical manual
Subnet Mask 000.000.000.000 See technical manual
Adaptive Processing Status Diagnostics, See Section 3.4.3.1, Adaptive Processing Diagnostics, on page 3-11.
Loopback None Normal
Test Tone Disabled Normal
System Control Status Diagnostics, See Section 3.4.6.1.1, Controller Board Diagnostics, on page 3-26
CAN Test Messages Disabled Normal
Up converter Status Diagnostics, See Section 3.4.5.3.1, Up Converter Diagnostics, on page 3-22
Output Power AGC Enabled Normal, can be disabled for testing
Table 3-3 Settings Resulting From Restore Defaults Activation.