Telemetering and Propagation Problems of Placing the Earth Satellite in Its Orbit

Some of the problems and general planning in connection with telemetering of earth satellite launching vehicles are briefly presented. Of major importance is the propagation of signals over extended ranges, the diversity of requirements for both the test and mission phases, and the necessity for the use of reliable light-weight equipment. In treating these problems an attempt has been made to outline their general scope rather than give a detailed technical exposition. Some sidelights on the role that telemetering plays in a rocket program have been mentioned as appropriate background.