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.
More about Rohde & Schwarz Spectrum Analyzers: https://www.rohde-schwarz.com/us/products/test-and-measurement/signal-spectrum-analyzers/pg_overview_63665.html?cid=802_us_smo_ALL__21-03_a______yt_TMfundmntls_EVM
Do you know your EVM? https://www.rohde-schwarz.com/us/applications/do-you-know-your-evm-application-card_56279-787578.html?cid=802_us_smo_ALL__21-03_a______yt_TMfundmntls_EVM
R&S®FSW-K70 Measuring the BER and the EVM for Signals with Low SNR - Application Sheet: https://www.rohde-schwarz.com/us/manual/r-s-fsw-k70-measuring-the-ber-and-the-evm-for-signals-with-low-snr-application-sheet-manuals-gb1_78701-205888.html?cid=802_us_smo_ALL__21-03_a______yt_TMfundmntls_EVM
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Amplifier Masterclass - A discussion of EVM: https://www.youtube.com/watch?v=YT5qVqOWPpo
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