[Allstar Digital] Off topic

[Robert Newberry]

Yes, I should of been more clear, similar idea running nearly the same
hardware. In the video he is using a RPI1. I was just pointing out a video
with the same basic concept but with D-star instead of DMR.

N1XBM
Apparare Scientor
Paratus Communicare
Allstar Node # 27086, 41540, 41812, 42086, 42658

On Feb 10, 2016 11:30 AM, "Mike Zingman" <mike.zingman at gmail.com> wrote:

> Robert,
>
> The video you reference is showing how the ThumbDV/DV3000 can be used for
> DStar.  This has been done by several developers before, but it is not for
> DMR.
>
> Mike
>
>
> On Wed, Feb 10, 2016 at 10:56 AM, Robert Newberry <N1XBM at amsat.org> wrote:
>
>> Real cool, I do not know how to write code or software, but it seems that
>> it's not hard to imagine an iPhone or Android app connected to dmrlink as a
>> peer...or something similar along those lines such as iaxrpt app.
>>
>> If I understand things right, there is a guy on YouTube by the name of
>> Budd Churchward who did something similar.
>>
>> N1XBM
>> Apparare Scientor
>> Paratus Communicare
>> Allstar Node # 27086, 41540, 41812, 42086, 42658
>>
>> On Feb 10, 2016 10:43 AM, "Mike Zingman" <mike.zingman at gmail.com> wrote:
>>
>>> Since this is an ASL list, this is off topic, but may interest some
>>> members.  So here goes.
>>>
>>> Yesterday I decided to try a simple experiment and it worked better than
>>> I had expected.  I conducted my first QSO on DMR without any RF hardware at
>>> all.  Basically just like the DVDongle/ThumbDV for DStar is used (WinDV or
>>> DummyRepeater).  It looks like:
>>>
>>> Mic/Speaker on PC <---> DMRGateway <---> DMRlink <--- BM or SANDBOX
>>>
>>> DMRGateway talks directly with the ThumbDV to both encode and decode the
>>> AMBE data.  The audio and data paths look like:
>>>
>>> TX - Mic audio is pulled from the sound card as 8KHZ PCM and feeds the
>>> encoder.  PTT is controlled by either VOX or a keyboard toggle.  The AMBE
>>> is then encapsulated in IPSC frames and passed on to DMRlink to send to the
>>> network.
>>>
>>> RX - DMRlink sends us AMBE frames.  AMBE audio is decoded by the ThumbDV
>>> and the 8KHZ PCM is sent to the sound hardware.
>>>
>>> This is the same as the ASL solution with USRP except that there is no
>>> ASL and no USRP ;-)
>>>
>>> And it works!  The sound is clean.
>>>
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>>>
>>>
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>
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