The Bureau of Mines continues a program to develop and introduce new communication techniques and hardware that goes as far as possible toward meeting the mining industry's needs. The programs are designed to provide continuous fallout of new communications capabilities which are introduced to the mine operators as they occur. This paper reports on recent advances achieved in the development of improved mine communications systems.
Pres. At 1977 Fall Mtg., SME, AIME, Denver, Colorado, Sept. 1-3, 1976, Preprint 76-F-333