The amplitude radio transmitter using high frequency power level of carrier has the following constituent stages namely master oscillator, buffer amplifier or isolating amplifier, harmonic generators,...
The main component of the receiving unit is a direction coupler. A direction coupler is a radio frequency coupler. This device cannot generate energy of its own that is it is a passive device. The rad...
More of the attention now a days is on reception of the radios as a large number of radios are used in cars, public transport like buses, offices and homes having window panes which come out to be an ...
Satellite radio is those which ensure and promise the best quality of sound that can be received in an area of thousands of kilometers. With the satellite radios one doesn't feel the difference in sou...
When the transmitting and the receiving antennas are close to the surface of the earth, the space is negligibly small and the surface wave alone is of importance, thus the day time propagation of the ...
According to this method of classification transmitters can be classifies as Long wave, Medium wave, Short wave, Very high Frequency , Ultra high frequency and Micro wave transmitters.
Long wave tran...
Methods of amplitude modulation can be put in the two categories namely Linear modulation methods and Square law modulation methods. Linear modulation method utilizes the linear region of the current ...
The process of detection or demodulation consists in recovering the original modulating voltage from the modulated carrier voltage. Thus detection is a process of reverse modulation. The modulation fr...
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iPod + Phone = iPhone
June 29th Apple released the new music player iPhone. After a long time waiting, people camped outside of stores 2 or 3 days to ma...