Underground Wireless Communication Breakthrough Achieved

What the researchers did

I watched the Korea team create a tiny antenna that sends sound through heavy rock.

We used magnetic waves at 15 kilohertz because dirt usually kills regular radio waves fast.

You carry the hand sized receiver to hear voices from one hundred meters away.

I walked five levels deep into a limestone mine to prove the voice stays clear.

Data speeds reach four kilobits per second which allows you to speak clear.

I saw this new record beat any other tests done before.

You can save lives during a mine cave in when the old phone lines break.

A trapped worker uses this to describe their location to the rescue crew.

Your company can use this in tunnels or secret bases where you hate wires.

I am trying to put this technology inside your smartphone very soon.

We filed the patents and put our study in IEEE IoT Journal for scientists.

Future versions will surely travel through deeper ground or even cold water.