Polar mount
Polarmount is a common mounting method used in mounting movable satellite antennas. An axis parallel to the axis of rotation of the earth carries a rotor. The rotor rotates the antenna mount in a plane that is parallel to the earth's equatorial plane. The satellite antenna is attached to the rotor by means of an angle adjustment for the so-called "declination angle".
By turning the rotor, the antenna can be aligned with all satellites in equatorial orbits with a suitable fixed setting of the declination angle. This also includes geostationary satellites .
The polar mount is to be distinguished from the azimuth / elevation mounting method , in which two axes / angles (azimuth and elevation) have to be adjusted at the same time for tracking an equatorially orbiting satellite.
Basically, the same results can be achieved with polar mount-mounted antennas as with azimuth / elevation-mounted antennas, if the declination axis / the declination angle can be adjusted as required.
literature
- Bernhard Krieg: Satellite TV Little theory, a lot of practice. 1st edition, Elektor-Verlag GmbH, Aachen 1987, ISBN 3-921608-47-3