This video provides a short introduction to voltage-controlled oscillators (VCO) and the most common measurements made during VCO characterization. Learn more about the R&S FSPN: http://rsna.us/6058kZ2b4 Learn more about the R&S FSWP: http://rsna.us/6059kZ2bf Timeline: 00:00 Introduction 00:15 Suggested viewing 00:34 About oscillators 01:43 About voltage-controlled oscillators 02:10 VCO applications 02:50 VCO design 03:48 Ideal VCO behavior 04:45 How VCOs are characterized 05:41 Example: VCO test configuration 06:15 Common VCO measurements 06:51 Tuning range 07:44 Frequency pushing 09:04 Frequency (or load) pulling 09:57 Tuning sensitivity 10:54 Output power vs. tune voltage 11:32 Current vs. tune voltage 12:08 Harmonic power 12:52 Summary