| 1. | One relates to noise factor while the other relates to noise temperature.
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| 2. | Thus the noise temperature is proportional to the power spectral density of the noise, P / B.
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| 3. | This particular design had very low sidelobes, and thus made very low receiving system noise temperatures possible.
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| 4. | Plot used in the Y-factor method for determining the gain and noise temperature of an amplifier.
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| 5. | Typical receiver noise temperatures at 115.3 GHz are 65-70 K single sideband ( SSB ).
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| 6. | The antenna noise temperature T _ { ant } gives the noise power seen at the output of the antenna.
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| 7. | The low-noise quality of an LNB is expressed as the noise figure ( or sometimes noise temperature ).
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| 8. | Thus it doesn't make sense to talk about the noise temperature of a capacitor or of a voltage source.
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| 9. | The noise temperature of the receiver circuitry T _ { sys } represents noise generated by noisy components inside the receiver.
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| 10. | The whole system noise temperature looking at cold sky ( 2.7 kelvins in the microwave band ) was 17 kelvins.
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