What is BER in Telecommunications measurement?

Bit Error Rate (BER) in telecommunications is a metric that quantifies the number of bit errors in a transmitted data stream relative to the total number of bits sent over a communication channel. It is typically expressed as a ratio or percentage, indicating the reliability and quality of the transmission. A lower BER signifies better performance and fewer errors, which is crucial for ensuring effective communication in digital systems. BER is often used to evaluate and optimize various transmission technologies and protocols.