PSA Series 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. 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 are needed.

Important

Some of the performance tests require actual step attenuator calibration data to obtain valid results. Please refer to the Equipment Calibration Data section in the N7800A TME Help for details on how to enter this data.

  1. Internal Alignment

  2. Frequency Reference Accuracy

  3. Power Bandwidth Accuracy

  4. Resolution Bandwidth Switching Uncertainty

  5. Residual Responses

  6. Displayed Average Noise Level (DANL)

  7. Input Noise Density

  8. Audio Amplitude Accuracy

  9. Audio Distortion

  10. Frequency Readout Accuracy

  11. Frequency Span Accuracy

  12. Count Accuracy

  13. RBW Selectivity CISPR Bands

  14. IF Amplitude Ripple

  15. IF Frequency Response (Wide IF)

  16. Spurious Responses

  17. Frequency Response Above 3 GHz

  18. Frequency Response (Option 123)

  19. Frequency Response (Option 110)

  20. LO Output Amplitude Accuracy

  21. Gain Compression (see Note below)

  22. Third Order Intermodulation Distortion

  23. Third Order Intermodulation Distortion (Wide IF)

  24. Second Harmonic Distortion (SHD)

  25. IF Phase Ripple (Option B7J) (see Note below)

  26. IF Input Accuracy (Option AYZ)

  27. Absolute Amplitude Accuracy

  28. Input Attenuation Switching Uncertainty

  29. Display Scale Fidelity

  30. Noise Sidebands

  31. Noise Sidebands < 50 kHz Offsets (see Note below)

  32. Noise Sidebands > 50 kHz Offsets (see Note below)

  33. Frequency Response (Option B7J)

  34. Frequency Response 300 kHz to 3 GHz

  35. Preselector Tune Out Accuracy

  36. Frequency Response Below 300 kHz

This test is run from the Normal Variant in TME. For more information on variants, click here.