CWNP
CWDP-305 · Question #254
The thermal noise is at -174 dBm/Hz. A spectrum analyzer has a resolution bandwidth of 1 kHz and a 5 dB noise figure. What is the level of the noise floor? A. -174 dBm
The correct answer is B. -144 dBm. See the full explanation below for the reasoning.
Question
The thermal noise is at -174 dBm/Hz. A spectrum analyzer has a resolution bandwidth of 1 kHz and a 5 dB noise figure. What is the level of the noise floor? A. -174 dBm
Options
- A-139 dBm
- B-144 dBm
- C-204 dBm
How the community answered
(34 responses)- A18% (6)
- B76% (26)
- C6% (2)
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