Updated 05 February 2018
More calculators at https://www.satellite-calculations.com
20©18 Jens T. Satre
alfa= 10^(FeedLoss/10)] - the antilog of the feedloss in dB (abs value).
Beta= 10^(LNBVSWRLoss/10)] - the antilog of the VSWR LNB loss in dB (abs value).
Tsys= Tant+ 290*[L-1] + Tlnb*L
(G/T is referred to the input of the antennafeed - before WG losses)