Measurement and test of a DVB-S2 satellite broadcast

Our work consists of a real experience of satellite transmission and reception, this work comes with the aim of modeling and simulating a communication system in order to improve the performance of the satellite communication. The experiment was carried out within National Broadcasting and Television Company (NBTC), where we measured and compared the signal transmitted and received by modifying input parameters such as power, frequency, type of coding and modulation. In these experiences, we used a GSERTEL tool as measurement system in order to show the performance according to gain and emission power. As result, we have different types of parameters (C/N, MER BCHBER, LDPCBER, EIRP, Constellation and Link margin). In this paper, we present the main characteristics of satellite transmission/reception and the description of modulation, demodulation, and the encoding types. These characteristics have been experimented and measured by doing a transmission with different frequencies within the National Broadcasting and Television Company, where we have transmitter and receive some data with different parameters. Finally, obtained results are evaluated, compared and discussed.