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g86
Joined: 21 Jan 2003
Posts: 208
Helped: 4
Location: On top of antenna :))
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 10 Mar 2003 21:58 Low frequency RF communication |
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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]
  
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flatulent
Joined: 19 Jul 2002
Posts: 4856
Helped: 292
Location: Middle Earth
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| 10 Mar 2003 22:09 radiating system bandwidth |
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| 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.)
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uther8472
Joined: 08 Feb 2003
Posts: 13
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| 10 Mar 2003 22:39 |
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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
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Hishamsaleh
Joined: 06 Jan 2003
Posts: 100
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| 11 Mar 2003 11:21 |
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| http://www.reconnsworld.com/transmit_simplerf.html
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g86
Joined: 21 Jan 2003
Posts: 208
Helped: 4
Location: On top of antenna :))
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| 11 Mar 2003 12:16 |
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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
| uther8472 wrote: |
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 |
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