Antenna rotator controllers and conversion systems therefor

A digital display system for use with a controller for an antenna rotator which includes means for generating an analog signal varying as a function of the angular position of the antenna, the digital display system comprising:

• means for converting the analog signal to a corresponding first digital signal representative of the angular position of the antenna relative to a first reference heading of the antenna;
• storage means having a prestored table of digital values of angular positions of the antenna relative to a second reference heading of the antenna and which in response to the first digital signal produces a second digital signal corresponding to one of the prestored digital values, the second digital signal thereby being representative of the angular position of the antenna relative to the second reference heading;
• and
• means responsive to the second digital signal for displaying digits representative of the angular position of the antenna relative to the second reference heading.

In a controller for a rotator for rotating an antenna to selected angular positions and generating an analog signal which varies as a function of the angular position of the antenna, a conversion system comprising:

• means for converting the analog signal to a corresponding first digital signal representative of the angular position of the antenna relative to a first reference heading;
• storage means having a prestored table of digital values of angular positions of the antenna relative to a second reference heading of the antenna and which in response to the first digital signal produces a second digital signal corresponding to one of the prestored digital values, the second digital signal thereby being representative of the angular position of the antenna relative to the second reference heading;
• and
• means responsive to the second digital signal for displaying digits representative of the angular position of the antenna relative to the second reference heading.