Radio Link That Can Function Underground

Radio doesn't work underground.

Two way communication is possible underground and even in mines.

Please give some more info :-

Where are you from? , where is underground? , functions etc

Hi guys

in my industry radio link are used in different substations and quayside equipment for wireless communication and the current radio link system that we use is very old and therefore not reliable anymore,there have been a number of breakdown due to the radio link communication failure and this current radio can transfer limited data and since there are some future technology development in the industry that will also require radio link communication.all I need is what radio link do you use and recommend avialable that can also be adequate wireless communication between Substation and mobile equipment.note conveyor belt are the mode of transport in this situation.

regards

bright

RF communication underground, ESPECIALLY in mines, is tightly regulated due to the use of HIGH EXPLOSIVES. Check your local regulatory authorities for permits, frequencies, etc.

nope, no radio underground, as a caver we'd give a first born for GPS for mapping, not possible, MANY tries, not a doable.

Not even with fixed radio repeaters positioned and spaced to allow (near enough to) line of site communication?

Can you please provide more information as it may be possible (but only in certain situations and applications).