thermal noise

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    Noise figure of attenuator

    Hey. I have a question about noise figure and attenuator. Lets assume we talk about 1Hz BW and the Thermal noise is -174dbm What happens if a signal with a power of -168dBm is going to a 10dB attenuator? is it possible to get below Thermal noise? and what happens if I put 50ohm at the input and...
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