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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.
Q. Point charges, each of √4πε 0 C, are located at the vertices of an equilateral triangle of side a. Determine the electric force on each charge.
How does a Mach-Zehnder Modulator work in Silicon?
Q. The K map of a logic function is shown in Figure. (a) Obtain a POS expression and its corresponding realization. (b) For the purpose of comparison, obtain the correspondin
Design a logic circuit when to provide an output when any two or three of four switches are closed.
Q. Explain how LEDs are arranged in a seven segment display ? The illustration given below shows the basic layout of the segments in a seven- segment display. The segments the
What is the use of modem control unit in 8251? The modem control unit handles the modem handshake signals to coordinate the communication among the modem and the USART.
Theft or Pilferage of Power by the Existing Customers Power theft through the existing consumers is the predominant cause of loss of revenue to the electrical utilities. Almos
A three-phase, four-pole, 220-V, 60-Hz induction machine with a per-phase resistance of 0.5 is operating at rated voltage as a generator at a slip of -0.04, delivering 12 A of li
What are the functional types used in control words of 8251a? The control words of 8251A are divided into two functional types. 1. Mode Instruction control word 2. Comman
Tardy Billing and Poor Revenue Collection Prolonged disputes, connivance, lack of consumer friendly policies, incorrect identification of category, fictitious billing (of non-
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