On 22 Nov 2013, at 18:20CET, Mike Dennison <[email protected]> wrote:

> I have received the following from the BBC. Does any member of this 
> group have direct practical or theoretical knowledge of VLF submarine 
> comms and would be able to help? Please reply direct to me at:
> mike.dennison =at= ntlworld.com
> 
> "BBC Coast is making a short film about submarines.
> 
> "As part of the piece we would like to explain how 
> communications worked. How were messages sent from shore to
> the submarine?
> 
> "I know you specialise in low frequencies, and I´d very
> much like to have a chat with you about the principles
> involved in undersea comms. Specifically about VLF ( very
> low frequency) transmissions.
> 
> "We also hope to set up a `rough science´ experiment
> which would help explain how/ why VLF is able to penetrate
> water.
> 
> "Unfortunately we are up against a tight deadline, and need
> to film the item during the first week of December."
> 
> Thanks
> MIke, G3XDV
> 
> 

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