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Understanding Error Vector Magnitude (EVM)
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This video explains the fundamental concepts behind error vector magnitude (EVM), including what EVM is, how EVM is measured, and best practices when making EVM measurements.
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Timeline:
00:00 Introduction
00:17 Suggested Viewing
00:41 About digital modulation
01:44 About error vector magnitude (EVM)
03:05 Contributors to EVM
04:25 EVM and modulation order
05:27 Calculating EVM
06:19 EVM results
07:04 EVM vs. time / symbol
07:46 EVM vs. frequency
08:44 EVM vs. power
09:25 EVM vs. power vs. frequency
09:58 Instruments for measuring EVM
10:42 Measurement best practices
11:55 Summary
Need help with Rohde & Schwarz products & services?
Timeline:
00:00 Introduction
00:17 Suggested Viewing
00:41 About digital modulation
01:44 About error vector magnitude (EVM)
03:05 Contributors to EVM
04:25 EVM and modulation order
05:27 Calculating EVM
06:19 EVM results
07:04 EVM vs. time / symbol
07:46 EVM vs. frequency
08:44 EVM vs. power
09:25 EVM vs. power vs. frequency
09:58 Instruments for measuring EVM
10:42 Measurement best practices
11:55 Summary
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