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There are 3 stages of an FM transmitter which allow you to transmit information over the FM band. These 3 stages need to be integrated into a single circuit to form what is known as a 3 stage FM transmitterA modulator circuit to add the information to be transmitted to the carrier wave produced by the oscillator. This is done by varying some aspect of the carrier wave. The information is provided to the transmitter either in the form of an audio signal, which represents sound, a video signal, or for data in the form of a binary digital signal. In an FM (frequency modulation) transmitter the frequency of the carrier is varied by the audio signal.Many other types of modulation are also used. In large transmitters the oscillator and modulator together are often referred to as the exciter. An RF power amplifier to increase the power of the signal, to increase the range of the radio waves.An impedance matching (antenna tuner) circuit to match the impedance of the transmitter to the impedance of the antenna (or the transmission line to the antenna), to transfer power efficiently to the antenna. If these impedances are not equal, it causes a condition called standing waves, in which the power is reflected back from the antenna toward the transmitter, wasting power and sometimes overheating the transmitter.
A radar antenna is an example of power amplification because it receives weak signals from the radar transmitter and amplifies them to a higher power level before transmitting them back out into the environment. This increase in power allows the radar to detect objects at longer ranges and improve the overall performance of the system.
That depends on a number of factors. Antenna height both receive and transmit. Transmitter power and antenna gain. About 15 miles max.
The maximum distance at which a radar set is ordinarily effective in detecting objects can be increase by lowering the pulse frequency, raising the peak power of the transmitter, narrow the beam with and increasing the pulse duration
Increasing the power delivered to load motor in an electric vehicle design and a solar array loaded by a grid tied inverter are some applications of maximum power transfer theorem. Maximizing the power delivered to transmission line or antenna in a radio transmitter final amplifier stage design is another practical application.
Amplifier is used in an FM transmitter to increase the level of a signal suitable for transmission
used to increase the power level of the transmitting signal
That truthfully depends on the transmitter's transmitting power, height of the transmitting antenna and the terrain.
A better antenna is always preferred to more power because it helps you to transmit AND receive signals. More power only helps the transmitter.
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by increasing the power of electromagnet
Turning up the transmitter power is a good way to insure that more cellphones, farther away, can hear the base station. But it doesn't to anything to help the base station hear the cellphones that are farther away. The only way to increase the coverage range reciprocally is to do something with the antenna. But that's a catch-22 . . . a higher-gain antenna has a narrower beam-width. So it works farther out, but only through a narrower 'window' of directions.