Table of Contents ix
6880309N62-C June, 2005
Figure 7-33. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z09-A) ...... 7-27
Figure 7-34. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486342Z09-A)... 7-28
Figure 7-35. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z09-A) ................... 7-29
Figure 7-36. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z09-A) ................... 7-30
Figure 7-37. VHF (146-174 MHz) Board Component Side View (8486342Z09-A)............................. 7-31
Figure 7-38. VHF (146-174 MHz) Board Solder Side View (8486342Z09-A)..................................... 7-32
Figure 7-39. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z13-C)......... 7-37
Figure 7-40. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z13-C) ........... 7-38
Figure 7-41. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z13-C)............ 7-39
Figure 7-42. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z13-C)........................ 7-40
Figure 7-43. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486342Z13-C) .............................................................................................. 7-41
Figure 7-44. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486342Z13-C) .............................................................................................. 7-42
Figure 7-45. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z13-C)...... 7-43
Figure 7-46. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486342Z13-C)... 7-44
Figure 7-47. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z13-C)................... 7-45
Figure 7-48. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z13-C)................... 7-46
Figure 7-49. VHF (146-174 MHz) Board Component Side View (8486342Z13-C)............................. 7-47
Figure 7-50. VHF (146-174 MHz) Board Solder Side View (8486342Z13-C)..................................... 7-48
Figure 7-52. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C)......... 7-53
Figure 7-53. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486769Z04-C) ........... 7-54
Figure 7-54. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)............ 7-55
Figure 7-55. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................ 7-56
Figure 7-56. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-57
Figure 7-57. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-58
Figure 7-58. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)...... 7-59
Figure 7-59. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)... 7-60
Figure 7-60. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)................... 7-61
Figure 7-61. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486769Z04-C)................... 7-62
Figure 7-62. VHF (146-174 MHz) Board Component Side View (8486769Z04-C)............................. 7-63
Figure 7-63. VHF (146-174 MHz) Board Solder Side View (8486769Z04-C)..................................... 7-64
Figure 8-1. UHF Receiver Block Diagram .......................................................................................... 8-1
Figure 8-2. UHF Transmitter Block Diagram ...................................................................................... 8-3
Figure 8-3. UHF Frequency Generation Unit Block Diagram ............................................................. 8-5
Figure 8-4. UHF Synthesizer Block Diagram...................................................................................... 8-6
Figure 8-5. UHF VCO Block Diagram................................................................................................. 8-7
Figure 9-1. UHF Receiver Block Diagram .......................................................................................... 9-1
Figure 9-2. UHF Transmitter Block Diagram ...................................................................................... 9-3
Figure 9-3. UHF Frequency Generation Unit Block Diagram ............................................................. 9-5
Figure 9-4. UHF Synthesizer Block Diagram...................................................................................... 9-6
Figure 9-5. UHF VCO Block Diagram................................................................................................. 9-7
Figure 10-1. UHF Receiver Block Diagram ........................................................................................ 10-1
Figure 10-2. UHF Transmitter Block Diagram .................................................................................... 10-3
Figure 10-3. UHF Frequency Generation Unit Block Diagram ........................................................... 10-5
Figure 10-4. UHF Synthesizer Block Diagram.................................................................................... 10-6
Figure 10-5. UHF VCO Block Diagram...............................................................................................10-7
Figure 12-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence ........................................... 12-3
Figure 12-2. Speaker and Microphone Schematic ............................................................................. 12-3
Figure 12-3. UHF (403-440 MHz) Radio Circuit Block Diagram (8486635Z03-O) ............................. 12-5
Figure 12-4. UHF (403-440 MHz) Receiver Front End Schematic Diagram (8486635Z03-O)........... 12-6
Figure 12-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram (8486635Z03-O) ........... 12-7