Re: LF: Article on VLF

[Chris Trayner <C.Trayner@leeds.ac.uk>]

On 2013 Dec 2, at 18:31, John Rabson wrote:

> I have received the following request from G4AEE of the Cave Radio & 
> Electronics Group Journal editorial team:
> 
> “[We wish] to include an article on what radio amateurs are doing at VLF ...
> Another aspect would be the likely performance of highly compressed speech.


Hey, I've got this great idea.
Rather than compress speech, why not render the message simpler? Rather than 
the sounds you could just send the text, encoding the letters in some way. You 
could turn the carrier on and off, say in short or long bursts, with a group of 
such pulses to represent each letter.

You could even tailor it to letter frequencies, e.g. one short pulse for E, one 
long pulse for T, ...

73,
Chris
-----------------------
Dr Chris Trayner
School of Electronic & Electrical Engineering,
The University of Leeds,
Leeds LS2 9JT, United Kingdom
Tel: +44 113 34 32053
Fax: +44 113 34 32032