List of Figures xvii
6881096C74-B May 25, 2005
Figure 5-31. RF Power Amplifier (RFPA)—No or Low TX Power Output
(380–470 MHz and 450–520 MHz)—Part 2 of 5 .................................................................5-41
Figure 5-32. RF Power Amplifier (RFPA)—No or Low TX Power Output
(380–470 MHz and 450–520 MHz)—Part 3 of 5 .................................................................5-42
Figure 5-33. RFPA Power Control—No VGBIAS (380–470 MHz and 450–520 MHz).............................5-45
Figure 5-34. No 16.8 MHz Reference Oscillator Frequency (700–800 MHz) ..........................................5-46
Figure 5-35. Poor RX Sensitivity or No RX Audio (700–800 MHz)—Part 1 of 2......................................5-47
Figure 5-36. Poor RX Sensitivity or No RX Audio (700–800 MHz)—Part 2 of 2......................................5-48
Figure 5-37. RX IF—Poor SINAD or No Audio (700–800 MHz) ..............................................................5-49
Figure 5-38. RX Back-End—Poor SINAD or No Audio (700–800 MHz)—Part 1 of 3..............................5-50
Figure 5-39. RX Back-End—Poor SINAD or No Audio (700–800 MHz)—Part 2 of 3..............................5-51
Figure 5-40. RX Back-End—Poor SINAD or No Audio (700–800 MHz)—Part 3 of 3..............................5-52
Figure 5-41. Low or No RX Injection Signal (700–800 MHz) ...................................................................5-53
Figure 5-42. Low or No TX Injection Signal (700–800 MHz) ...................................................................5-54
Figure 5-43. No TX Audio (700–800 MHz) ..............................................................................................5-55
Figure 5-44. TX or RX VCO Unlock (Fail 001) (700–800 MHz)—Part 1 of 2...........................................5-56
Figure 5-45. TX or RX VCO Unlock (Fail 001) (700–800 MHz)—Part 2 of 2...........................................5-57
Figure 5-46. RF Power Amplifier (RFPA)—No or Low TX Power Output (700–800 MHz)—Part 1 of 5 ..5-58
Figure 5-47. RF Power Amplifier (RFPA)—No or Low TX Power Output (700–800 MHz)—Part 2 of 5 ..5-59
Figure 5-48. RF Power Amplifier (RFPA)—No or Low TX Power Output (700–800 MHz)—Part 3 of 5 ..5-60
Figure 5-49. RFPA Power Control—No K9.1V (700–800 MHz)...............................................................5-63
Figure 5-50. RFPA Power Control—No VGBIAS (700–800 MHz) ...........................................................5-64
Figure 5-51. RFPA Power Control—No or Low TX RFPA_CNTRL (700–800 MHz)—Part 1 of 2 ...........5-65
Figure 7-1. HUD4022A/HUD4025 Main Board Overall Block Diagram and Interconnections .................7-3
Figure 7-2. HUD4022A Controller Block Diagram and Interconnections (Sheet 1 of 2) ..........................7-4
Figure 7-3. HUD4022A Controller Block Diagram and Interconnections (Sheet 2 of 2) ..........................7-5
Figure 7-4. HUD4022A Controller Urchin IC, MUX, and AD5320 DAC Schematic .................................7-6
Figure 7-5. HUD4022A Controller Audio Schematic................................................................................7-7
Figure 7-6. HUD4022A/HUD4025B Controller Power Control (Sheet 1 of 2) ..........................................7-8
Figure 7-7. HUD4022A/HUD4025B Controller Power Control (Sheet 2 of 2) ..........................................7-9
Figure 7-8. HUD4025B/HUE4043A Controller Block Diagram ..............................................................7-10
Figure 7-9. HUD4025B/HUE4043A Controller Daughter Board Interface .............................................7-11
Figure 7-10. HUD4025B/HUE4043A Controller Urchin IC, MUX and AD5320 DAC ...............................7-12
Figure 7-11. HUD4025B/HUE4043A Controller Audio.............................................................................7-13
Figure 7-12. HUD4025B/HUE4043A Controller Interface, Secure and Power Block Diagram................7-14
Figure 7-13. HUD4025B/HUE4043A Controller Power Supply................................................................7-15
Figure 7-14. HUD4025B/HUE4043A USB/RS232 Interface ....................................................................7-16
Figure 7-15. HUD4025B/HUE4043A SB9600 .........................................................................................7-17
Figure 7-16. HUD4025B/HUE4043A Control Head Connector 1 of 2......................................................7-18
Figure 7-17. HUD4025B/HUE4043A Control Head Connector 2 of 2.....................................................7-19
Figure 7-18. HUD4025B/HUE4043A Secure Interface Connector Schematic........................................7-20
Figure 7-19. HUD4022A/HUD4025B Frequency Generation Unit Overall Schematic (Sheet 1 of 2)......7-21
Figure 7-20. HUD4022A/HUD4025B Frequency Generation Unit Overall Schematic (Sheet 2 of 2)......7-22
Figure 7-21. HUD4022A/HUD4025B VHF Transmitter VCO Schematic .................................................7-23
Figure 7-22. HUD4022A/HUD4025B Frequency Generation Unit VHF Receive Injection Schematic.....7-24
Figure 7-23. HUD4022A/HUD4025B Frequency Generation Unit VHF Transmit Injection Schematic....7-25
Figure 7-24. HUD4022A/HUD4025B Receiver Back-End Schematic......................................................7-26
Figure 7-25. HUD4022A/HUD4025B Receiver Front-End Schematic (Sheet 1 of 2) ..............................7-27
Figure 7-26. HUD4022A/HUD4025B Receiver Front-End Schematic (Sheet 2 of 2) ..............................7-28
Figure 7-27. HUD4022A/HUD4025B Receiver IF Schematic..................................................................7-29
Figure 7-28. HUD4022A RF Power Amplifier (RF PA) Schematic (Sheet 1 of 2)....................................7-30
Figure 7-29. HUD4022A RF Power Amplifier (RF PA) Schematic (Sheet 2 of 2)....................................7-31
Figure 7-30. HUD4025B RF 100W Power Amplifier (RF PA) Schematic (Sheet 1 of 2) .........................7-32
Figure 7-31. HUD4025B RF 100W Power Amplifier (RF PA) Schematic (Sheet 2 of 2) .........................7-33
To Next Page
Loading...
Need help?
General