Characteristics Of Satellite Communication Channel

A communication channel refers either to a physical transmission medium such as a wire or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking a channel is used to convey an information signal for example a digital bit stream from one or several senders or transmitters to one or several receivers. Ultra high frequency uhf is the itu designation for radio frequencies in the range between 300 megahertz mhz and 3 gigahertz ghz also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter one decimeter radio waves with frequencies above the uhf band fall into the super high frequency shf or microwave frequency range. Due to the distance between satellite transponder and ground terminal in the satellite communication system satellite communication is affected badly by multipath fading and shadowing effect.

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This article describes the components of a digital telecommunications system as outlined above.

Characteristics of satellite communication channel.

Characteristics of wireless communication channel wireless communications channel 4g communications characteristics of wireless communications channel. Online version can instantly reach people with internet access. The transmitted signal when reaches the receiver through different directions. In this paper we describe the transmission characteristics of satellite communication channel.

The wireless signal propagation characteristics from a satellite based transmitter to an airborne receiver are of special interest for supplying the aircraft itself or the passengers with communication abilities. As a result the satellite at a such high speed that it visible to the ground only for a short time at each day the satellite appeared below the horizon and dies appear below the opposite horizon the ground station was cut off for long time in day to maintain the communication link another. For details on specific applications that utilize telecommunications systems see the articles telephone telegraph fax radio and television transmission over electric wire radio wave and optical fibre is discussed in telecommunications media for an overview of the types of networks used in. The wireless channel is susceptible to a variety of transmission impediments such as path loss interference and blockage.

The formal channel of communication is defined as the official or formal medium of transmitting information to its intended audience within an organization. These factors seriously affect the quality of communication and the system spectrum efficiency. A message that is being transmitted through this type of communication must follow a chain of command. The characteristics of different communication channels adapted from jhu ccp and unicef c4d orientation module 2009 print media newspaper distribution of paper copies depends on physical access and existence of functioning distribution channels.

These factors restrict the range data rate and the reliability of the wireless transmission. The satellites were placed in low earth orbit. Models and to investigate the characteristics of the satellite to helicopter channel. Several effects were considered such as.