Recent questions tagged spectrum

Description : Applications of Spectrum Analyser

Last Answer : Applications of Spectrum Analyser are as follows: i) It is used to study the RF spectrum produced in microwave instrument. ii) It is used for testing of RF interference. iii) It is used for measurement ... a parametric amplifier. xi) It is used to measure the modulation index of an AM wave.

Description : i) Explain electromagnetic spectrum with neat diagram. ii) Explain atmospheric noise with example. 

Last Answer : Explanation:-  The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths  The electromagnetic spectrum covers ... spread over the complete frequency spectrum used for radio communication.  Example: Lightning 

Description :  An energy signal has G(f) = 20. Its energy density spectrum is A) 20 B) 100 C) 400 D) 800  

Last Answer : 400

Description : Spectrum analyzer

Last Answer : Spectrum analyzer Spectrum analyzer is use for measuring signal in frequency domain. It measure modulation, distortion and noise. Spectrum analyzer measure the electrical input signal, for measuring ... of the signal. Other control include dynamic range, sweep speed and resolution bandwidth.

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