##  [Symbol Error Rate (SER)](/index.php/symbol-error-rate-ser) 

  ##  [Symbol Error Rate (SER)](https://information.quantumdictionary.io/symbol-error-rate-ser-0) 

  

 [![Information & Communication Dictionary](/sites/default/files/styles/large/public/2026-01/Information%20%26%20Communication.png.webp?itok=g4emS-T7)](/index.php/topic-specific-dictionaries/information-communication)



**Information & Communication Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The proportion of transmitted modulation symbols that are received and decoded as a different symbol than transmitted, measured over a defined interval and measurement procedure; a modulation‑level metric distinct from bit‑level error measures.