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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.
how to upload the program on proteus soft ware by using personal computer?
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Define the basic working principle , process characteristics,advantages, disadvantages and application of Laser Beam Machining Process.
A 20µF capacitor is connected in series with a 50 kΩ resistor and the circuit is connected to a 20 V, d.c. supply. Verify: a) The initial value of the current flowing, b) T
pls give me the schematic of it
Q. A solenoid of cylindrical geometry is shown in Figure. (a) If the exciting coil carries a steady direct current I, derive an expression for the force on the plunger. (b) F
Q. Use of Speaker? Speaker:Basically speaker is the receiver for telephone. Speaker converts electrical signals received from local loop to acoustical signals(sound waves) that
Calculate the current flow in 30Ω resistor for the circuit in figure using Thevenin's Theorem.
A two-pole, three-phase, 60-Hz, wye-connected, round-rotor synchronous generator has N a = 12 turns per phase in each armature phase winding and flux per pole of 0.8Wb. Find the r
The maximum power transfer theorem states: 'A load will receive maximum power from a linear bilateral dc network when its total resistive value equal to the Thevenin's or Norto
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