The Navy´s Portable Satellite Tracking Stations

The stations described recover doppler frequencies to an accuracy of one part in 10⁹ and subcarrier oscillator frequencies to 15 kc bandwidths. Coherent phase detection and a tracking local oscillator to minimize required reception bandwidth maximizes signal sensitivity. Station portability accommodates rapid changes of location as dictated by satellite projects and the flexibility of the receiving and recording equipment due to unitized construction permits inexpensive modifications to accommodate present and future satellite programs.