What is the absolute bandwidth for a spectrum ranging between 300 Hz and 3 KHz? (Write your answer in Hz).
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- What is the difference between time and frequency domain?How many decades does the frequency span of 30 Hz to 15 000 Hz represents? (decades What upper frequency limit would one hove if they extended 2.5 decades from 30 Hz? (Hz) What is the low-frequency cut-off for a 2.5-decade span with an upper limit of 5000 Hz? (Hz) Find the multiplier to divide 1 Hz to 300 Hz into six equal logarithmic intervals (dimensionless):A nonperiodic composite signal has a bandwidth of 170 kHz, with a middle frequency of 120 kHz and a peak amplitude of 20 V. The two extreme frequencies have an amplitude of 10 V. 1. The lowest frequency is KHz. 2. The highest frequency is KHz. Draw the frequency domain of the signal. (You don't need to submit the curve to the Canvas.)
- 2. Write an OCTAVE program to plot the signal given below P=Pmax Sin(2πft); where Pmax=10 MW, f=60 Hz Find out time.peniod and verify it with graph. Assume necessary data.What is the difference between frequency modulation and phase modulation? DO NOT COPY FROM THE BOOk, please write it in your own words.Design (only the block diagram) an Armstrong indirectly FM modulator to generate an FM carrier with a carrier frequency of 98.1MHz and df (frequency deviation) =75kHz.A narrowband FM generator is available at a carrier frequency of 100 KHz and a (frequency deviation) df=10Hz.The stockroom has an oscillator with an adjustable frequency in the range of 10 to 11MHz.There are plenty of Frequency multipliers.
- a. What frequency is halfway between 100 and 3000 Hz on a logarithmic frequency scale? b. On a linear frequency scale?Suppose we are building a radio receiver with an R-L-C circuit. We would like to receive radio signals of 1 MHz or 1,000,000 Hz, but not any neighboring frequencies (higher or lower). In other words, we want low impedance at 1,000,000 Hz, and high impedance at other frequencies. How might we adjust R, L, and C to optimize this circuit?It refers to the mixing of frequencies in a nonlinear device or the use of nonlinear mixing to convert one frequency to another. Select your answer. Frequency transformation Frequency mixing Superheterodyne Heterodyne
- Build an AC RLC circuit a) Choose values for voltage, frequency, resistance, capacitance and inductance. b) Calculate the impedance, phase angle and resonant frequency.Q1) for the signal that is shown in the figure below A) plot the amplitude spectrum X(t) 2. B) Determine the total power C) Find the value of (n) such that the power reaches %50 of the total power4. Sketch in Figure 1,b the normalized output amplitude verses frequency of the circuit, Figure la, below. XFG1 Output Ground Frequency Figure 1, a: RC Circuit & b: Frequency Response Amplitude