Noise temperature of HyperLog 60100
Firstly, I read the book "Digital Communications Fundamentals And Applications" written by Bernard Sklar and I realized that the antenna's noise temperature (Tant) depends on the place where it is and the direction that it is pointing. So the antenna temperature is a measure of the noise introduced by the antenna taking into account its antenna pattern.
Secondly, I found in the same book that the receiver's composite noise figure (or total noise figure as I called it) is calculated from the antenna terminals to the last element of the front end. So it isn't necessary to know the antenna temperature to calculate that parameter.
Have I understood these concepts fine?