On the other hand, a good satellite dish looking through the atmosphere into space (so that it sees a much lower noise temperature) would have the SNR of a signal degraded by more than 6 dB.
一方、大気を通り宇宙に向けられた（そのためはるかに低い雑音温度が見られる）良い衛星アンテナは、6dB以上減少した信号のSN比を持つ。