A receiving antenna with a gain of 40 dB looks at a sky with a noise temperature of 15 K. The loss between the antenna and LNA input due to the feed horn is 0.4 dB, and the LNA has a noise temperature of 40 K. The \(\frac{G}{T}\) value is

A receiving antenna with a gain of 40 dB looks at a sky with a noise t

1.	A receiving antenna with a gain of 40 dB looks at a sky with a noise temperature of 15 K. The loss between the antenna and LNA input due to the feed horn is 0.4 dB, and the LNA has a noise temperature of 40 K. The \(\frac{G}{T}\) value is
A.	11.2 dB/K
B.	13.4 dB/K
C.	20.6 dB/K
D.	39.0 dB/K
Answer» D. 39.0 dB/K

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A receiving antenna with a gain of 40 dB looks at a sky with a noise temperature of 15 K. The loss between the antenna and LNA input due to the feed horn is 0.4 dB, and the LNA has a noise temperature of 40 K. The \(\frac{G}{T}\) value is

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