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Q. Commercial FM radio broadcasting?
Commercial FM radio broadcasting utilizes the frequency band of 88 to 108 MHz for the transmission ofmusic and voice signals. The carrier frequencies are separated by 200 kHz, and the peak frequency deviation is fixed at 75 kHz. Each station (out of the possible 100) broadcasts in a channel bandwidth of 200 kHz centered on the carrier. The FM system is capable of presenting higher quality audio to the user than AM because of the larger audio band allowed from 50 Hz to 15 kHz. Distortion at most stations is below 1%. Besides broadcast applications, FM is also used in satellite links, aircraft altimetry, radars, amateur radio, and various two-way radio applications. Because of the larger bandwidth (up to 20 times more than in AM), an FM system has more freedom from interference and better performance in noise than any AM station.
dear sir, when i am going to simulate my model in matlab i am getting the following error : the derived input for the integrator is inf or nan at time xxxxx. try to reduce the step
1. A 1 μm long and 100 μm 2 cross-sectional area silicon bar is doped with 10 16 /cm 3 phosphorous. Use the graph below to: a. Find the current at 300°K with 10 V applie
Q. Show how a 16-to-1 multiplexer can be used to implement the logic function described by the following truth table.
explan Two segment and four sagment commutator action
Connect the two signals used in section 2 above to the "Multiplier" module. Make sure that you record the amplitude of each signal. Observe and record the resultant waveform in
In the magnetic circuit shown in Figure (a) the coil of 500 turns carries a current of 4 A. The air-gap lengths are g 1 = g 2 = 0.25 cm and g 3 = 0.4 cm. The cross-sectional are
Q. Define and explain the critical field circuit resistance and critical speed of a DC shunt generator. Ans. The OCC and R - line for a DC shunt generator. As, R f is
Q. For a pyramidal-horn antenna, the maximum directive gain is given by occurring when the aperture dimensions are A ∼ = √3λLandB = 0.81A. The principal-plane beam- widths
(a) "Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8 kHz using 256 quantization levels". i. Outline how this scheme works with the help of sketches and,
Questions: Part (a) A compressor installed at a wharf (for loading container ships) is able to provide 6 bar.g pressure into the pressure receiver. The compressor is moved
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