[Elecraft] K3 Digital Voice Mode - our future?
Richard Fjeld
rpfjeld at outlook.com
Fri Sep 18 01:09:44 EDT 2015
Yes he is. Oh, to be that capable.
On 9/17/2015 11:53 PM, Walter Underwood wrote:
> FreeDV is open source. You can use the FreeDV API (http://www.rowetel.com/blog/?p=3469 <http://www.rowetel.com/blog/?p=3469>) or get a box that will implement it and can be updated with new protocols (http://www.rowetel.com/blog/?page_id=3902 <http://www.rowetel.com/blog/?page_id=3902>). Or you can download the FreeDV app. Or download the source, either one from here: http://freedv.org/tiki-index.php <http://freedv.org/tiki-index.php>
>
> Dave Rowe (VK5DGR) is actively improving both the HF and VHF variants of FreeDV, with very interesting articles on his blog. He’s working on a low bitrate version for nasty HF signal paths (FreeDV 700), and is working on a VHF digital voice mode with two levels of fidelity always transmitted. When you get more signal, you get more fidelity (http://www.rowetel.com/blog/?p=3931 <http://www.rowetel.com/blog/?p=3931>).
>
> Here are some samples of the current 700 bitrate codec: http://www.rowetel.com/blog/?p=4291 <http://www.rowetel.com/blog/?p=4291>
>
> And some A/B comparison QSOs with SSB and FreeDV: http://www.rowetel.com/blog/?p=4527 <http://www.rowetel.com/blog/?p=4527>
>
> Dave is doing some very exciting stuff, I’m impressed. And it’s all free.
>
> wunder
> K6WRU
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
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