XM Satellite Radio

2 OFDM SYSTEM:- OFDM system is divided into three parts 1. multi carrier modulation 2. frequency division multiplexing 3. Orthogonal frequency division multiplexing. 1.Frequency division multiplexing:- Frequency Division Multiplexing is a form of signal multiplexing which involves assigning non – overlapping frequency ranges or channels to different signals or to each user of a medium. A gap is left between each of these channels to ensure that the signal of one channel does not overlap with…

Today, Morse code remains popular with amateur radio operators around the world. It is also commonly used for emergency signals. It can be sent in a variety of ways with improvised devices that can be switched easily on and off, such as flashlights. Morse code was a significant invention that revolutionised…

ROLE OF LOCAL RADIO? HOW DOES A LOCAL RADIO SEGMENT THEIR AUDIENCE? INTRODUCTION Until the 1970s the BBC had a legal monopoly on radio broadcasting and Independent Local Radio in the United Kingdom did not exist in any form apart from pirate radio stations. However, that changed with the election of Edward Heath’s government followed by the introduction of commercial radio (Reynolds, 2007). I had the opportunity to work in the local commercial radio station for Cumbria: Lakeland Radio and in…

culture, such as the TV networks, access to cable, satellite and internet. If you were to drive through these areas a generation ago, it would feel like a trip to different nation in a different time. People living in these areas were exposed to broadcast media far less than the people from the urban areas, and people from rural areas did not really take part in the shared culture. But due to the radio the situation completely changed. The Radio connected rural America to urban America in this…

similarity to WI-FI which utilizes radio waves for transfer of data. WI-FI is great for extensive wireless coverage in buildings but has severe limitations for high density wireless information coverage in limited space and has radio waves interference issues; While Li-Fi greatly overcomes such restrictions. These two technologies can be well thought-out as harmonizing to each other in numerous ways and Li-Fi has advantages over usual Wi-Fi.…

Many people listen to the radio that is at least half of the population listens to the entertainment, to get music, to hear to news and get information concerning travels. This company generates lots of millions of cash to the government in the form of revenues starting from the year 2004 up to date. This industry is seen to have contributed lots of employment to the residents and hence providing lots of money through the direct and indirect means. Since the amounts of revenues have reduced the…

Almost two decades ago, Congress passed the Telecommunications Act of 1996. Intended to better the life of Americans economically and socially, the act unexpectedly did just the opposite. Cable and broadcast television as well as radio were the two media outlets most affected by this new bill. This is an example of what can happen when the public is not informed about policy decisions and when big corporations spend their money on political contributions while making promises they cannot keep.…

INTRODUCTION Millimeter wave therapy is the exposure to a frequency that ranges from 30-300 GHz. This frequency is located in the radio frequency region of the electromagnetic spectrum. Due to the extremely small wavelength the frequency will only penetrate up to 2 mm of skin. In therapy the frequency is irradiated on certain parts of the tissue, depending on the specific treatment and energy it is deposited in the skin causing a variety of beneficial reactions. In the Former Soviet Union (FSU)…

Prior to the invention of Television, studios depended on big stars, studio owned theaters and an contracted assembly line of movie production. Dark rooms with big screens drew crowds in the millions at the height of Hollywood. With Television’s inception, millions of viewers began tuning into these 12x12 inch boxes for an average five hours daily. Box office sales were hit hard by less movie attendees. Within a decade of the introduction of Television, box office sales are fractionalized.…

During the Cold War era, as the free will system in American resonated around the world; simultaneously, there rose one of the most socially-dictating capable inventions known to man: the television (Anderson and Bushman, 2001). During this Golden Age of television, almost every American household had a television set in their homes. This new devotion to viewing the television led to many societal changes on how we looked, behaved or interacted with people. In the essay “The Man Who Counts the…