Title :
Transmission of radio signals in deep-level gold mines indirectly via power cables
Author :
Austin, Brian A. ; Kerdic, I.
Author_Institution :
Chamber of Mines of South Africa Research Laboratories, Electronics & Mechanical Engineering Division, Johannesburg, South Africa
Abstract :
A method of coupling into the bifilar mode on a multiconductor line is discussed. No special-purpose mode convertors are employed, and the technique has special significance for fixed-station applications such as telemetry systems used underground in mines.
Keywords :
carrier transmission on power lines; mining; radiocommunication; underground cables; bifilar mode; multiconductor line; telemetry systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770333
