Research and development contract for coal mine communication system. Volume 4 - environmental measurements.
Laubengayer-WC; Ware-KM; Gehring-RD; Wilson-LR; Decker-RP; Anderson-DT
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract H0232056, 1974 Nov; 4:1-75
Eight coal mines were visited to determine their communications usage and requirements. Presently available equipment was surveyed and evaluated to determine its applicability to the needs of the mines. The requirements, as determined from the surveys, and the capabilities, as determined from analysis and experiments, were summarized. Volume 4 describes the propagation measurements made in selected mines during the project, along with findings resulting from these measurements.
Mining-industry; Mining-equipment; Underground-mining; Coal-mining
CP; Final Contract Report
NTIS Accession No.
OFR 69(4)-75; Contract-H0232056
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract H0232056
Collins Radio Company