The spectrum analyzer, like an oscilloscope, is a basic tool used for observing signals. Where the oscilloscope provides a window into the time domain, the spectrum analyzer provides a window into the frequency domain. To get better spectrum analyzer measurements the input signal must be undistorted, the spectrum analyzer settings must be wisely set for application-specific measurements, and the measurement procedure optimized to take best advantage of the specifications. More details on these steps will be addressed in Keysight hints guide.
Hint 1. Selecting the Best Resolution Bandwidth RBW
Hint 2. Improving Measurement Accuracy
Hint 3. Optimize Sensitivity When Measuring Low-level Signals
Hint 4. Optimize Dynamic Range When Measuring Distortion
Hint 5. Identifying Internal Distortion Products
Hint 6. Optimize Measurement Speed When Measuring Transients
Hint 7. Selecting the Best Display Detection Mode
Hint 8. Measuring Burst Signals: Time Gated Spectrum Analysis