N7818A Performance Tests Overview

The performance verification tests are designed to provide the highest level of confidence that the instrument being tested conforms to published, factory-set specifications. The tests are designed to test an instrument operating within the temperature range defined by the instrument specifications. The test names align with the test specification in the Specification Guide. Some repairs require a performance test to be run after the repair. If the instrument is unable to pass any of the performance tests, adjustments or further repairs may be needed.

Some of the performance tests require actual step-attenuator calibration data to obtain valid results. Please refer to the Enter Equipment Calibration Data section in the TME Help for details on how to enter this data.

 

Tests apply to all supported models unless otherwise specified on the test topic page. Click on the links below to go to the test topic page.

  1. Internal Alignment

  2. Frequency Reference Accuracy

  3. Power Bandwidth Accuracy

  4. Resolution Bandwidth Switching Uncertainty

  5. MIL STD RBW Selectivity

  6. Residual Responses

  7. Noise Density

  8. Displayed Average Noise Level

  9. Displayed Average Noise Level RF2

  10. Effective DANL (Option NFE/NF2)

  11. Frequency Readout Accuracy

  12. Frequency Span Accuracy

  13. Count Accuracy

  14. IF Frequency Response

  15. RBW Selectivity CISPR Bands

  16. Phase Noise

  17. Absolute Amplitude Accuracy at 50 MHz

  18. Input Attenuation Switching Uncertainty

  19. Display Scale Fidelity

  20. Freq Resp Above 3.6 GHz Preamp On

  21. Abs Amp Accy EMI Rcvr Mode Above 3.6GHz Preamp On

  22. IF Input Gain Accuracy Option EXM

  23. IF Input Gain Accuracy Option EXM WBIF

  24. LO Output Power Accuracy Option EXM

  25. Spurious Responses

  26. Freq Resp Above 3.6 GHz Preamp Off

  27. Abs Amp Accy EMI Rcvr Mode Above 3.6GHz Preamp Off

  28. Second Harmonic Intercept

  29. Gain Compression

  30. Third Order Intermodulation Distortion

  31. Response to Pulses (Peak, Ave, RMS)

  32. Variation with Pulse Repetition Freq (Ave, RMS)

  33. Response to Intermittent Disturbances (Ave, RMS)

  34. Radiated Band Sine Wave Accuracy

  35. Radiated Band Sine Wave Accuracy Option TDS

  36. Freq Resp 50 MHz to 3.6 GHz

  37. Abs Amp Accy EMI Rcvr Mode 50 MHz to 3.6 GHz

  38. Freq Resp 9 kHz to 50 MHz

  39. Abs Amp Accy EMI Rcvr Mode 9 kHz to 50 MHz

  40. Conducted Band Sine Wave Accuracy

  41. Freq Resp Below 300 kHz

  42. Response to Pulses (Peak, Ave, RMS) Bands A/B/C/D

  43. Q-P Detector Absolute Calibration

  44. Q-P Detector Variation with Pulse Repetition Freq

  45. Conducted Band VSWR

  46. Radiated Band VSWR