INTERESTING NOTE - You may mount a satellite dish upside down as shown below. You may use a inclinometer to help point the dish, keeping in mind the 34.6 degree offset. The look angle for your installation will be on the installer sheet. The 1.2 meter Galileo satellite dish has look angle offset of 17.3 degrees from the dish's perpendicular point, or 34.6 degree offset from the LNB (17.3 x 2 = 34.6 degrees). On the dish above, the look angle is not discernible from either perpendicular from the dish plane, or the feed horn direction. The LOOK ANGLE is the actual direction of the orbiting satellite if measured from the horizon. Taken together, the Reflector, LNB, BUC and Waveguide are called the Antenna, because the satellite communication uses standard radio frequencies to communicate between dish and satellite. Water droplets that form on the feed horn will refract and redirect radio waves so that system becomes unusable. If not, it will have to be replaced, (or resealed if possible). IMPORTANT NOTE: Visually check the sealed feed horn is completely dry.

Only signals from the satellite dish should reach the LNB. Looking at the feed horn, you can see the rings that help cut down on ambient signals. The polarity of the signal is determined by the shape of the waveguide. The Wave Guide directs horizontal or vertical polarity signals to and from both the LNB and BUC. The cone shaped feed horn is designed to cut down ambient signal noise. The Transmitter (or BUC ' Block Up Converter') TRANSMITS to the satellite in orbit. The LNB (Low Noise Block) RECEIVES the satellite signal from space. If you were to break open the white plastic portion of the dish, you would see that inside is a wire mesh that is the part that actually reflects the signal. The satellite dish itself is simply a reflector that redirects the satellite signal to focus on the Feed Horn. The Satellite Dish (Reflector) and Radio Equipment

Photo reflector from satellite dish