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A receiver has a noise figure of 7 dB, gain of 40 dB, noise temperature is 290 K. then the noise power at the receiver is:
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Question:A receiver has a noise figure of 7 dB, gain of 40 dB, noise temperature is 290 K. then the noise power at the receiver is:
1.47. 4 dBm
2. -47.4 dBm
3.23 dBm
4. -23 dBm
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Answer:2
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