Comtech EF Data EQ90 Series - Manual (Page 8)

EQ90 Series Preface
Rev. 2 v
Figures
Figure 1-1. EQ90 Series Group Delay/Amplitude Equalizer Assembly .............................................. 1–2
Figure 1-2. Dimensional Envelope....................................................................................................... 1–6
Figure 2-1. Typical Rack Installation................................................................................................... 2–3
Figure 2-2. Equalizer Power and Interface Connectors........................................................................ 2–4
Figure 3-1. Front Panel Indicators......................................................................................................... 3-2
Figure 3-2. Rear Panel Control and Connectors.................................................................................... 3-3
Figure 3-3. Equalizer Module ............................................................................................................... 3-6
Figure 3-4. Alignment Setup ................................................................................................................. 3-8
Figure 3-5. Effect on Delay of Varying C Switch................................................................................. 3-8
Figure 3-6. Effect on Delay of Varying “L”........................................................................................ 3-10
Figure 3-7. Effect on Amplitude of Varying “R”................................................................................ 3-10
Figure 3-8. Effect on Amplitude of Varying “R”................................................................................ 3-11
Figure 3-9. Multi-Pole Bandpass Filter Delay Response .................................................................... 3-11
Figure 3-10. Single-Section Equalizer Delay Response...................................................................... 3-12
Figure 3-11. Composite Delay Response ............................................................................................ 3-12
Figure 3-12. Equalizer Composite Delay Response............................................................................ 3-14
Figure 3-13. All Sections Tuned 1 MHz Lower in Frequency ............................................................ 3-14
Figure 3-14. All Sections Tuned 1 MHz Higher In Frequency ........................................................... 3-15
Figure 3-15. System Integration Alignment Test Setup ...................................................................... 3-16
Figure 3-16. Typical Satellite Transponder Delay .............................................................................. 3-17
Figure 3-17. Required Equalizer Delay Characteristic........................................................................ 3-17
Figure 3-18. Ideal Composite Delay Result ........................................................................................ 3-18
Figure 3-19. Typical Half Transponder Video Carrier Delay ............................................................. 3-19
Figure 3-20. Required Equalized Delay Characteristic ....................................................................... 3-19
Figure 3-21. Ideal Composite Delay Result ........................................................................................ 3-20
Figure 3-22. Typical Delay Characteristic .......................................................................................... 3-20
Figure 3-23. Shifted Equalizer Delay Characteristic........................................................................... 3-21
Figure 3-24. Resultant Composite Delay Characteristic ..................................................................... 3-21
Figure 3-25. Transponder Delay Characteristic .................................................................................. 3-23
Figure 3-26. Equalizer Delay Characteristic ....................................................................................... 3-23
Figure 3-27. Resultant Composite Delay Characteristic ..................................................................... 3-24
Figure 3-28. Transponder Delay Characteristic .................................................................................. 3-24
Figure 3-29. Equalizer Offset Delay Characteristic ............................................................................ 3-25
Figure 3-30. Resultant Composite Delay Characteristic ..................................................................... 3-25
Figure 4-1. Equalizer Component Locations ....................................................................................... 4–5
Tables
Table 1-1. Electrical Specifications and Operational Characteristics.......................................... 1–4
Table 2-1. Single Channel Equalizer Rear Panel Mating Connectors ......................................... 2–5
Table 2-2. Dual Channel Equalizer Rear Mating Connectors ..................................................... 2–5
Table 3-1. Front Panel Indicator Functions .................................................................................. 3-2
Table 3-2. Rear Panel Controls and Connector Functions ........................................................... 3-4
Table 3-3. Equalizer Module Control Functions .......................................................................... 3-6
Table 3-4. Peak-to-Peak Delay Magnitude ................................................................................ 3-13
Table 4-1. Equalizer Troubleshooting Procedure........................................................................ 4–2
Table 4-2. Equalizer Spare Parts ................................................................................................. 4–5