Mimosa Backhaul Help Content
Mimosa Backhaul Performance
Copyright © 2014 Mimosa Page 25
Error Vector Magnitude (EVM)
The error vector magnitude or EVM describes how well the receiver can detect symbols (data) within a constellation
of symbols on the I-Q plane for a particular modulation. It is the difference in RMS power between the point where a
symbol is received and where the symbol should be. This difference is caused by noise.
When analyzing EVM, the lower the number the better.
EVM (dB) EVM (%) Assessment
0 100.0 Poor
-5 56.2 Poor
-10 31.6 Poor
-15 17.8 OK
-20 10.0 Good
-25 5.6 Good
-30 3.2 Excellent
-35 1.8 Excellent
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