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
Maintenance and Troubleshooting Exciter Troubleshooting
Page: 5-26 888-2604-001 03/08/07
WARNING: Disconnect primary power prior to servicing.
Figure 5-9 Exciter Output Spectral Response, RTAC Bypassed
Table 5-5 Phase Noise Mask
Frequency Offset relative
to CW signal.
Phase Noise
PSD (dBc/Hz)
Frequency Offset relative
to CW signal.
Phase Noise
PSD (dBc/Hz)
10 Hz -50 100 kHz -110
100 Hz -80 1 MHz -120
1 kHz -90 >1 MHz -120
10 kHz -95
Table 5-6 Output Signal Bandwidth
Bandwidth
Setting
Actual
Bandwidth
5 MHz 4.52 MHz
6 MHz 5.42 MHz
7 MHz 6.33 MHz
8 MHz 7.23 MHz
A
*
RBW 30 kHz
SWT 30 ms
*
VBW 30 kHz
*
AVG
*1 R
M
Att 25 dBRef -1 dBm
Center 719 MHz Span 10 MHz1 MHz/
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Response
Shoulder
Response
Shoulder