BER - Bit Error Rate

dB - Decibel

dBm - Decibels referenced to one milliwatt

dBmV - Decibels referenced to one millivolt

dBµV - Decibels referenced to one microvolt

DQI - Digital Quality Index

HFC - Hybrid Fiber Coax

Pre BER - Bit Error Rate before Forward Error Correction

Post BER - Bit Error Rate after Forward Error Correction

QAM - Quadrature Amplitude Modulation

MER - Modulation Error Ratio