Title :
Point-to-Point Radio Relaying via the Scatter Mode of Tropospheric Propogation
Author :
Norton, Kenneth A.
Author_Institution :
Central Radio Propagation Laboratory, National Bureau of Standards, Boulder, Colorado, USA
fDate :
3/1/1956 12:00:00 AM
Abstract :
Formulas are given for determining the transmitter power required to provide a specified grade of service in point-to-point radio relaying of the following types of signals: television, frequency modulation high fidelity music, frequency modulation voice, frequency shift telegraph, and a just measurable signal. Allowance is made for the antenna gains, the carrier frequency, the systems bandwidth, distance, the antenna heights above the ground and the effects of the terrain and the atmosphere along the transmission path. The formula for the transmission loss allows separately for the effects of the actual distance, the angular distance and the antenna heights, and this separation of the influence of these variables provides the basis for the development of rules for the efficient siting of the terminals of a tropospheric forward scatter relay circuit.
Keywords :
Frequency modulation; Multiple signal classification; Power system relaying; RF signals; Radio transmitters; Relays; Scattering; TV; Telegraphy; Transmitting antennas;
Journal_Title :
Communications Systems, IRE Transactions on
DOI :
10.1109/TCOM.1956.1097261