Mining Publication: Propagation of EM Signals in Underground Mines
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Original creation date: January 1977
This report is a comprehensive summary of the results of the propagation measurements program conducted for the Bureau of Mines. Data were gathered in the medium frequency (MF) range from a cross sample of six mines representative of the industry having typical wireless requirements. From the data that were gathered, a logical method of data reduction is presented that culminates in a set of average attenuation characteristics for all mines visited. These characteristics define a typical MF wireless system when the communication range requirements are known. Direct through-the-earth propagation and the range enhancement mechanism due to coupling on-and-off conductors are evaluated and related to the planning of a typical wireless MF communications system.
Authors: TS Cory
Conference Paper - January 1977
NIOSHTIC2 Number: 10001377
Rockwell International. U.S. Bureau of Mines Contract No. H00366028. NTIS No. PB/289-757, 1977; :1-158
See Also
- Advanced Tutorial on Wireless Communication and Electronic Tracking: Communication System Performance
- Basic Tutorial on Wireless Communication and Electronic Tracking: Technology Overview
- Communication Systems Research At Bruceton Safety Research Mine
- Propagation of EM Signals in Underground Metal/Non-Metal Mines
- Technical Services for Mine Communications Research: Task A, Task Order No. 1 - Applicability of State-Of-The-Art Voice Bandwidth Compression Techniques for Wireless Mine Communication
- Through-The-Earth Wireless Real-Time Two-Way Voice Communications
- U.S. Bureau of Mines New Developments in Mine Communications
- Ultra-Low Frequency Through-the-Earth Communication Technology
- Underground Mine Communications
- Wireless Through-The-Earth Modeling and Support
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program