The British Caving Association

Rob Gill did some experiments using FreeDV codec for digital speech using the uHeyPhone at last year's Spring field meet. The results weren't exactly stunning, but it was only one series of quick experiments with the various stages hooked together on the day and little prior setting up or testing. I...

...Historically, developers have used their own preferences to determine key parameters such as operating frequency and mode with the result that many systems are incompatible. I suggest that we shape the next generation of cave radios by producing a set of recommendations describing preferred mode...