PSA Series Adjustments Overview

Adjustments should not be used for calibration. These procedures are designed to reset various circuit parameters. In addition, some of the tests reset or calculate correction values associated with some measurements. The software is designed to adjust an instrument operating within the temperature range defined by the instrument specifications.

Never perform adjustments as routine maintenance. Adjustments should be performed only after a repair or a performance test failure.

1. Lowband Mixer Bias

2. Switched LO Distribution Amplifier (SLODA)

3. Frequency Extended Local Oscillator Multiplier Amplifier (FELOMA)

4. Preselector Bypass Mixer Bias

5. Dual Mixer Bias

6. Audio Step Gain and 10 kHz Calibrator

7. Audio Flatness

8. Second LO Power

9. Analog IF Input Detector

10. 50 MHz Calibrator Amplitude

11. Overload Detector DAC

12. 10 MHz Internal Frequency Reference

13. YTF Alignment (RYTHM and SBTX)

14. Frequency Response Above 3 GHz

15. Frequency Response (Option 123)

16. Frequency Response (Option 110)

17. Frequency Response < 3 GHz

18. Frequency Response (Option B7J)

19. Attenuator Slope

20. IF Input (Option AYZ)

21. LO Amplitude (Option AYZ)

22. Preselector Tune Out (Option AYZ)

23. WBIF Frequency Response