[hpsdr] KISS Konsole on Ubuntu 14.04

[Jae Stutzman]

On a whim, I thought I might try the Jetson TK1 board with mono/kiss
konsole. After working out the dependencies, it appears to run OK (I
haven't transmitted yet). Anything beyond 96000 sample rate will give audio
distortion on the receive. If I choose 192000 and then select NR, it really
goes off the rails. Keep in mind that this is completely running within the
ARM hard float CPU, which is using the original libfftw3 FFT library.
Utilizing a CUDA optimized FFT library would probably give a lot more
headroom. Both the spectrum and waterfall displays are ok with some slight
hiccup that correspond to audio blips.

73,

Jae - K5JAE


On Sun, Aug 31, 2014 at 5:12 PM, Rob Frohne <rob.frohne at wallawalla.edu>
wrote:

> That's neat Jae!
>
> 73,
> Rob
> KL7NA
>
> On August 31, 2014 12:36:38 PM AKDT, Jae Stutzman <k5jae at stutzman.net>
> wrote:
>>
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> The link should not have the following '.' at the end. Here it is again:
>> http://i.imgur.com/AsJ4pSE.png
>>
>>
>>
>> On Sun, Aug 31, 2014 at 3:30 PM, Jae Stutzman <k5jae at stutzman.net> wrote:
>>
>>> After about 3 hours worth of work and a few workarounds, I made my first
>>> QSO on 20 meters under Linux!
>>>
>>> I used MonoDevelop as the IDE for the C# KISS solution. I had to make a
>>> couple of changes for the P/Invokes of the fftw3f library and some of the
>>> Networking calls, which are still not implemented within the Mono CLR. The
>>> performance is quite good, I'll compare it to my Windows box to see the
>>> differences.
>>>
>>> Here is a link to a screenshot of how it looks: http://imgur.com/AsJ4pSE.
>>> I'll document my changes and the dependencies that I installed to make it
>>> work soon.
>>>
>>> Thanks everyone for the welcome and thanks to the authors of KISS
>>> Konsole for making the porting easy :)
>>>
>>>
>>> 73,
>>>
>>> Jae - K5JAE
>>>
>>>
>>>
>>>
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> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
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