Promax HD Ranger Lite, User Manual

Page: 144 / 184

18 July 2015
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Figure A2.5. An example of LNB(Low Noise Block-converter)
A2.1.3
Coarse dish alignment
We can use different techniques to find out where in the sky the satellite we want
is located. They can be anything from a pure guessing game to a sophisticated
procedure.
The satellites we are interested in are all positioned in a geostationary orbit
above the earth's equator. Each of them has a fix given position in that orbit,
something like a street number, that we can know from various sources. Orbital
position is an important datum so it is commonly part of the name as well.
Websites like http://www.lyngsat.com/ or http://www.satcodx.com/ offer plenty
of useful information about the satellites we are talking about.
For example ASTRA 19E refers to ASTRA satellite which is positioned at 19
degrees East in the orbit.
Knowing where we are in terms of latitude and longitude is also easy. We can
read that information from a map or even from our car's navigation system if we
have one.
Figure A2.6.