HP 5980-0288E free download

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10 Hints for Making Successful Noise Figure Measurements Application Note Optimize Your Measurements and Minimize the Uncertainties Table of Contents Introduction... 3 HINT 1: Select the Appropriate Noise Source... 4 HINT 2: Minimize Extraneous Signals ... 5 HINT 3: Minimize Mismatch Uncertainties... 6 HINT 4: Use Averaging to Minimize Display Jitter ... 7 HINT 5: Avoid Non-Linearities ... 8 HINT 6: Account for Mixer Characteristics ... 9 HINT 7: Use Proper Measurement Correction ... 12 HINT 8: Choose the Optimal Measurement Bandwidth ... 13 HINT 9: Account for Path Losses ... 14 HINT 10: Account for the Temperature of the Measurement Components ... 15 Appendix A: Checklist ... 16 Appendix B: Total Uncertainty Calculations ... 17 Appendix C: Abbreviations ... 18 Appendix D: Glossary and Definitions ... 18 Additional Resources ... 19 Find out more www.agilent.com/find/noisefigure 2 Introduction The checklist Noise figure is often the key to characterizing a receiver and its ability to detect in Appendix A weak incoming signals in the presence of self-generated noise. The process of reducing noise figure begins with a solid understanding of the uncertainties in is a helpful tool your components, subsystems and test setups. Quantifying those unknowns to verify that depends on flexible tools that provide accurate, reliable results. all hints have Agilent's noise figure solution set