Radio technology or device is said to sound, messages or signals by radio waves transmit. Radio link, send signals using the modulation Pymanhaykrdn electromagnetic waves at radio frequencies is. Electromagnetic radiation by fluctuations in the electromagnetic field through the air and vacuum pass. Information given using preset and change some characteristics of waves releases, such as amplitude, frequency , phase or pulse width, are displaced. Electromagnetic waves or directly in the path variable or with the help of reflection, deflection or diffraction, pass through space. Low-intensity waves, depends on the geometry scattering flux (intensity inverse radius), and in some cases, energy is absorbed by interference. Noise (noise) generally to change the signal, the electromagnetic interference from natural sources such as artificial sources such as other transmitters and accidental release comes donors. Also, due to the characteristics of devices that can be used at any time, noise is produced. If the noise is large enough, soon the signal to detect and distinguish not, it essentially limits the range of radio communications.
In his radio. Html. F (very high frequency) instead of modulating the amplitude of the frequency modulated (FM) is used. F method. My microphone signals instead of radio waves change their frequencies change. F method. I used to play audio and achieve higher quality because of less interference. It affects me.
Components of a radio station
Includes a source of electrical energy , which produces the desired frequency alternating current systems. The transmitter includes a system for changing some of the flow characteristics inside signal is generated to impress. This modulation should flow off, or the exact characteristics such as amplitude, frequency, phase, or a combination of these properties change. Electrical energy modulated transmitter to an antenna tuned resonator sends alternating current rapidly changing the structure of an electromagnetic waveconversion, which can pass through the air and vacuum. (Sometimes with a particular polarization)
Receiver antennas separated by a set of electromagnetic waves, and it is the structure of the wave energy into electric current makes swaying, the receiver decodes and rectifying the process, the signal can be detected by the system is used. Receiver, a device that, according priority to respond to signals and reject unwanted signals is used.
As vibrations and electrical signals converted.
Be beating the reciprocating wave before being sent to reinforce the antenna.
During the beating reciprocating wave for the manufacture of radio waves to create.
Causes the microphone signals during the beating reciprocating wave oscillator to change.
- The transmitting antenna:
Power radio waves that correspond with sound sends vibrations.
- Receiving antenna:
Radio waves in the ground. The waves at the antenna electrical signals are weak.
Select a station’s signals and other signals to remove it.
- Amplifier Radio:
Amplifiers strengthen the signal for pitch control in terms of how it is set up, the signal is high or low.
Electrical signals into sound vibration, similar to the microphone that had been converted.