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Table of Contents
P6249 4 GHz 5X Active Probe Instruction Manual
iii
List of Figures
Figure 1: Dynamic and offset limitations 12. . . . . . . . . . . . . . . . .
Figure 2: Probe functional check connections 13. . . . . . . . . . . . . .
Figure 3: Deskew fixture connections
(two P6249 probes shown) 15. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4: Maximum frequency vs. measurement lead length 21. .
Figure 5: Low-inductance grounding 23. . . . . . . . . . . . . . . . . . . .
Figure 6: Using a SureFoot adapter for grounding 24. . . . . . . . . .
Figure 7: Using a probe tip as a test point 25. . . . . . . . . . . . . . . . .
Figure 8: Typical input impedance and phase versus frequency 28
Figure 9: Typical bandwidth 29. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10: P6249 simplified schematic diagram 35. . . . . . . . . . . .
Figure 11: TEKPROBE interface 37. . . . . . . . . . . . . . . . . . . . . . .
Figure 12: Setup for output zero and DC attenuation accuracy 41
Figure 13: Test system rise time setup 44. . . . . . . . . . . . . . . . . . . .
Figure 14: Test system and probe rise time setup 45. . . . . . . . . . .
Figure 15: P6249 adjustment locations 49. . . . . . . . . . . . . . . . . . .
Figure 16: 1103 power supply offset voltage location 51. . . . . . . .
Figure 17: P6249 offset range setup 52. . . . . . . . . . . . . . . . . . . . .
Figure 18: Replacing TEKPROBE interface pins 53. . . . . . . . . . .
Figure 19: Removing the compensation box covers 54. . . . . . . . .
Figure 20: Replacing the compensation box cover 55. . . . . . . . . .
Figure 21: Replacing the TEKPROBE interface collar 56. . . . . . .
Figure 22: Compensation box test point locations 60. . . . . . . . . .
Figure 23: P6249 replaceable parts 65. . . . . . . . . . . . . . . . . . . . . .
Figure 24: P6249 standard accessories 66. . . . . . . . . . . . . . . . . . .
Figure 25: P6249 optional accessories 68. . . . . . . . . . . . . . . . . . .