This paper will first consider the very beginnings of satellite systems that began their development in the 1950s when the first experimental research began and since then the use of satellites has grown significantly. Differences in orbits that are important for the same satellite function will be defined. The most important Internet protocols and their characteristics will be described, and the types of satellite communications will be mentioned. Furthermore, satellite and terrestrial communications will be compared, their advantages and disadvantages, and satellite Internet in Croatia will be mentioned. At the end of the work, the practical establishment of the connection between the satellite and the isolated area on Earth will be verified in order to gain a better insight into the important parameters when calculating the connection.