This Project has been thought for every people that want to install a ranking satellite station. We’ll establish the basis for making it with the best efficiency. In order to this, we have divided the project in three parts for a best understanding of it and we are going to describe these three parts:
1.- Radio-link analysis:
In this part we’ll start describing some general concepts and basis for a better understanding of the text, and we’ll describe some parameters needed as what is a bacon, a transponder a locator, keplerian elements, modulations and so.
Then, we’ll describe the main losses that a signal could experience in the uplink to the satellite and the downlink. The main effects described here are the Doppler effect, the free space losses, the losses due to the antennas, the cables, connectors and, last of alls, the minorities effects as the location, and weather effects as the rainfall.
The orbits followed by the satellites have already a great importance in this project, so we’ll make a good description of each one. These orbits can be circular, elliptical and geostationary.To end this chapter, we’ll make the calculation needed to determine the orbit.
In order to complete this first part of the project, we’ll make the calculation of a radio link, the uplink as well as the downlink, and the results’ interpretation.
2.- Description of the elements needed
The second part of the project is to give a description of the elements necessaries to be able to build a satellite tracking station, this will specify the necessary equipment in order to receive and transmit signals. Subsequent chapters focus on each of the key parts of the earth station satellite tracking.
Antennas occupy a unique position in this project because of the importance we have therefore is a description of the most important antennas from the most simple as monopolos to the most complex such as loops or yaguis cross. In order to better appreciate the differences that exist between them is a comparison of the lobes of the antennas and their respective profits.
No less important than a good antenna is in possession of a transceiver that corresponds to the capacity of each user and use it sees fit, why describes these teams capable of transmitting and receiving radio signals from satellites, and its use distinguish three different models of two-way radios that are portable, mobile and fixed. As usual this will be part of the project at the end of each chapter will be to find a comparison chart between different models and ranges.
In the following chapters focus on the wires, preamplificadotes and software components that must be taken fully into account in the design of an earth station satellite tracking of radioafionado.
To conclude this portion includes an explanation of the telemetry that it is important, the most important protocols and a practice part.
3.- Design of the station
The third part of the project is devoted to the proper design of the station starting with the simplest and ending with the most complex that would double possessing equipment to allow full control over the satellite, although it must be stressed that this alone will be allowed to designers of the satellite.