H. T. Sherman and V. L. Johnson

Peer Reviewed

Abstract: The Coast Guard has been tasked to implement expanded Loran-C coverage to include the West Coast and Gulf of Alaska. This network of eight transmitting stations will employ the Loran-C Replacement (LRE) and an improved version of Loran Transmitting Set AN/FPN-44 which has been designated as AN/FPN-44A. The AN/FPN-44/45 generation of equipment was developed in 1962-63 by ITT Federal Laboratories and is in use in the North Atlantic, Northwest Pacific, Southeast Asia chains, and at Dana, Indiana in the East Coast chain. The latter station has been used as a prototype for the station configuration to be used in the West Coast and Gulf of Alaska chains. The new station configuration consists of the LRE package, which is described in another paper presented at this meeting, and Loran Transmitting Set AN/FPN-44A. This paper describes the total Loran-C ground station equipment, with emphasis on improvements made in the transmitter, its characteristics and reliability, and interface with the LRE system. Possible future improvements, power output capability, pulse shape and spectrum considerations, as well as modification for operation into new types of antennas are also discussed.
Published in: NAVIGATION: Journal of the Institute of Navigation, Volume 23, Number 4
Pages: 349 - 358
Cite this article: Sherman, H. T., Johnson, V. L., "THE LORAN-C GROUND STATION", NAVIGATION: Journal of The Institute of Navigation, Vol. 23, No. 4, Winter 1976-1977, pp. 349-358.
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