The LNA boosts the antenna signal to beat feed line losses amongst the antenna as well as the receiver. To simplify the noise achieve calculation, the noise sources in The easy amplifier circuit in Determine 1 is often reduced to an individual full RTI noise supply (Vni, TOTAL), as proven https://finnaoalx.blogadvize.com/45160925/low-noise-amplifier-can-be-fun-for-anyone