Low frequency RF communication

Hello friends,

Let us design a low frequency RF communication system say at 10 KHz. Can't we sent voice message using it?

RF is [Really Funny]

The major problem is the radiating system bandwidth. If you are going through parts of the earth with ground connections very far apart you can do this. (This ground method was a common hobby project many years ago. School children would communicat to each other by this method.)

hi,

Try to find

"IEEE transaction on communications"
April 1974 Volume COM-22

the main theme of this volume is
ELF (antenna design, propagation etc)

it's a quite old, but some parts are
useful all the time ....

uther

http://www.reconnsworld.com/transmit_simplerf.html

Thanks uther8472 for the reference. But IEEE explore has an archive since 1988 so I could not get the paper. Can anybody post the paper here.

Thanks and regards,

g86