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Various methods for transmission

There are various methods for transmission which includes a connection between earths to satellite then to floating device or ship etc It is also sophisticated way for duplex transmission via the Radio Frequency RF antennas located at ships base stations and earth stations Meanwhile transmitted or received data between buoys and underwater base stations with the aid of transmission appliances The numerous amounts of distinct types of transmission nodes in underwater system are easy to set up in the forms of AUV s and wireless system The entire above mention scenario illustrated in Fig 1 Figure 1 Multiple Communication Technologies It is easy to develop network architecture to control or programmed the network with the help of software applications in this type of adjustable communication circumstances each one with its basic properties can transfer data Radio Frequency Communication Radio frequency RF is a measurement representing the oscillation rate of electromagnetic radio waves from frequencies ranging from 300 GHz to as low as 30Hz With the use of antennas and transmitters an RF field can be used for various types of wireless broadcasting and communications Speed distance time Speed wavelength frequency Distance time wavelength frequency To Wavelength distance time frequency Frequency and distance are directly proportional to each other the higher the frequency the more distance for the sound to dissipate the lower the frequency the shorter the distance for the sound to dissipate In free space the use of frequency ranges for telecommunication broadcasting and for satellite transmission is not deployed underwater because of its conductivity means the ability to induce electricity it effects the attenuation of frequency ranges based on electromagnetic waves As a result it is hard to transmit data by using higher frequency ranges for more than 10 meters in underwater

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