While the mcHF has some digital audio circuitry, I don't believe it
provides a digital voice mode.
FreeDV is a very narrow-band (1.1 kHz) digital voice mode using the
open-source Codec2, developed by VK5DGR. One can run FreeDV without a
computer using the Rowetel SM1000 adapter
(https://www.tindie.com/products/edwin/sm1000-freedv-adpapter/). This
should work nicely with a KX2 or KX3 for portable FreeDV operation. I
haven't tried doing that but it looks fairly straightforward.
Bob, N7XY
On 3/27/17 2:28 PM, Harry Yingst via Elecraft wrote:
I would like to see Elecraft built it into their firmware.
I have a mcHF QRP radio that has Digital Voice in it
From: Richard Fjeld <[email protected]>
To: Elecraft Reflector <[email protected]>
Sent: Monday, March 27, 2017 2:13 PM
Subject: [Elecraft] K3/K3s; Digital modes, specifically DV
Greetings to all,
The K3/K3s is an excellent radio for digital modes due to the ease of
interfacing with a computer if desired. A computer is not even needed
for some digital modes, and I have tried that successfully.
I have mentioned in the past that I had tried the free software for
digital voice on HF called 'FreeDV'. I had worked a Canadian ham a few
times using it and he has been keeping in contact with me via email
encouraging me to get back into it. I am starting to get up to date
again, and I found accurate reviews of it on
http://www.eham.net/reviews/detail/11016 by K2RWF and WA0TPN. I think
you will find the reviews interesting and informative.
Notice that the reviews seem to be either at, or near, 5/5 or 0/5. I
think both of the reviews I mentioned answer why that is. I will keep
my experience mute and let you glean aye/nay from the reviews. Whether
you approve of digital voice or not, the K3/K3s is a natural for using
it, and it's fun. (As always with digital modes, be kind to your finals.)
FYI,
Dick, n0ce
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