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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.
On state voltage drop It is the maximum instantaneous on state voltage measured under pulse conditions to avoid excessive dissipation at a particular junction tem
Q. Show the Methods of material handling? Methods of material handling during operations and maintenance activities shall be considered for all facilities to ensure that the fi
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a. Explain the time division space switching b. Verify the execution complexity of 2048 channel TST switch with 16 TDM links and 128 channels. Let the time slot of space switch
WHAT IS X AND O
Q. For a BJT with vBE = 0.7V, I CBO = 4 nA, i E = 1 mA, and i C = 0.9 mA, evaluate α, iB,iSE, and β.
Find the current flow through resistor 12 Ω using Thevenin's Theorem.
Q. For the coupled coils shown in Figure, a dot has been arbitrarily assigned to a terminal as indicated. Following the dot convention presented in the text, place the other dot in
Q. Write a note on the application of emitter-follower? An emitter follower can serve as a buffer for a voltage source. The voltage divider at left is a poor voltage source bec
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