In the characterization of antenna performance, a figure of merit, where G is the antenna gain in decibels at the receive frequency , and T is the equivalent noise temperature of the receiving system in kelvins.
ANTENNA GAIN TO NOISE TEMPERATURE (G/T)
Meaning of ANTENNA GAIN TO NOISE TEMPERATURE (G/T) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012