The thermal noise power at the input of a radio receiver is 5μW. What will be the noise power if both the noi
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The thermal noise power at the input of a radio receiver is 5μW. What will be the noise power if both the noise temperature in kelvin and the bandwidth are doubled?
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With both of the key factors being doubled in absolute values, the effect should be to square the level of the noise, and I'd expect something on the order of 25uW out of the front end. Assuming the noise is more or less level across the spectrum of the bandwidth involved, you will have doubled the size of the 'gateway' for the noise (bandwidth) on twice the amount of noise.