âÅ"The MagneLink Magnetic Communication System works like a radio, but with low frequency. Unlike radio waves, magnetic energy can propagate in the coal and stone,âÂ said Dave Levan, researchers from Lockheed.
The system can connect a short wave radio miners commonly used, but with a wider reach and can reach the surface.
MagneLink Each system consists of two units, one at the surface, and another one in a mine. Units at the mine are blast resistant and only use less power. MagneLink system will be placed throughout the mine in order to facilitate the miners.
MagneLink system can send text messages and sounds like a radio. Each unit includes a keyboard"
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