Skip to main content

E4C05: What does a receiver noise floor of -174 dBm represent?

E4C05E4C

What does a receiver noise floor of -174 dBm represent?

Answer choices for E4C05
Why this wins

The key fact is The theoretical noise in a 1 Hz bandwidth at the input of a perfect receiver at room temperature. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E4C05 is The theoretical noise in a 1 Hz bandwidth at the input of a perfect receiver at room temperature.

The key fact is The theoretical noise in a 1 Hz bandwidth at the input of a perfect receiver at room temperature. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

← E4C04E4C06 →

More questions in E4C

E4C01What is an effect of excessive phase noise in an SDR receiver’s master clock oscillator?E4C02Which of the following receiver circuits can be effective in eliminating interference from strong out-of-band signals?E4C03What is the term for the suppression in an FM receiver of one signal by another stronger signal on the same frequency?E4C04What is the noise figure of a receiver?E4C06How much does increasing a receiver’s bandwidth from 50 Hz to 1,000 Hz increase the receiver’s noise floor?E4C07What does the MDS of a receiver represent?