radio and tv broadcasting schools

Communication Systems..

) cannot be efficiently radiated and do not propagate well in space. (ii) Simultaneous transmission of different signals by different transmitters would lead to confusion at the receiver. In order to solve these problems; we need to devise methods to convert or translate the audio signals to the ..

Channel A broadcasts news for every 4 hours and channel B broadcasts news for every 6 hours. If both the channels start broadcasting news now, then after how many hours will they start broadcasting news at the same time? => 24 hours or 20 hours or 18 hours or..

Radio Carbon Dating - Radiocarbon The 1 4 C so produced is eventually converted into CO 2 , which in turn is incorporated into plants and trees by the process of photosynthesis and then finds way into animals, which eat pla..

Radiocarbon dating of historical wooden - derived objects is based on the knowledge that the cosmic ray intensity (responsible for 1 4 C production) has been practically constant for thousands of years. 1 4 C is formed in the upper atmosphere by the action of cosmic radiation on 1 4 N..

With reference to the frequency range, the radio waves are classified as unde..

Radio waves are electromagnetic waves of wavelength 10 - 3 m and higher. Their frequency range is from a few kHz to nearly a few hundred MHz. The propagation of radio waves through the atmosphere is relevant in all modern forms of communication: radio, television, micr..

Radio waves are electromagnetic waves of wavelength 10 - 3 m and higher. Their frequency range is from a few kHz to nearly a few hundred MH..

This type of wave propagation is said to be unguided. The uniform plane wave exists throughout all space. The electromagnetic energy associated with the wave spreads over a wide area. Wave propagation in unbounded media is used in radio or TV broadcasting where the in..

In a survey, 75% of the population said they watch TV. Find the odds in favor of watching TV. => 1 : 3 or 4 : 1 or 3 : 1 or 3 : 4..