The Global Positioning System (GPS) will consist of 24 satellite positions with four satellite positions in each
of six 55" inclined equally spaced orbital planes. Each satellite will transmit the same two frequencies for navigational signals. These navi
ITU-R M.1088-1994 history
1994ITU-R M.1088-1994 Considerations for Sharing with Systems of Other Services Operating in the Bands Allocated to the Radionavigation- Satellite Service