[Elecraft] K3/K3s; Digital modes, specifically DV

[Bob Nielsen]

The more I look at the mcHF, the more impressed I become.  Once I get 
caught up with my current projects I'll seriously consider getting one.

The FreeDV code and more importantly Codec2 are indeed open source.  I 
don't know how much room there is in the K3/KX3/KX2 firmware to add 
something like this but if possible, it would be quite useful in getting 
more FreeDV activity going.  in the meantime, I'll make up some cables 
to connect my KX2 to my SM1000 and give it a try.

Bob, N7XY


On 3/27/17 6:54 PM, Harry Yingst wrote:
> There is a different group working on the firmware now 
> http://df8oe.github.io/mchf-github/
>
>
> As I understand it the FreeDV code is open source so Elecraft would 
> not need to reinvent the wheel.
>
>
>
>
> ------------------------------------------------------------------------
> *From:* Bob Nielsen <n7xy at n7xy.net>
> *To:* Harry Yingst <hlyingst at yahoo.com>
> *Sent:* Monday, March 27, 2017 9:49 PM
> *Subject:* Re: [Elecraft] K3/K3s; Digital modes, specifically DV
>
> Strangely the mcHF website doesn't seem to mention it but that's great.
>
> On 3/27/17 6:15 PM, Harry Yingst wrote:
>> The mcHF does indeed have FreeDV built in RX and TX (I'm looking 
>> right at it)
>>
>> I'm running ver 1.5.7 of the firmware (Ia little old as I have not 
>> updated it recently)
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Bob Nielsen <n7xy at n7xy.net> <mailto:n7xy at n7xy.net>
>> *To:* elecraft at mailman.qth.net <mailto:elecraft at mailman.qth.net>
>> *Sent:* Monday, March 27, 2017 7:13 PM
>> *Subject:* Re: [Elecraft] K3/K3s; Digital modes, specifically DV
>>
>> 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 <rpfjeld at outlook.com 
>> <mailto:rpfjeld at outlook.com>>
>> >  To: Elecraft Reflector <elecraft at mailman.qth.net 
>> <mailto:elecraft at mailman.qth.net>>
>> >  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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