[hpsdr] Fwd: Re: DFC

[John Melton]

There are some network performance configuration changes needed on the
Jetson so that it does not drop packets. I am not at home for a few days
but can send you the details when I get back.

-- John

On Fri, 13 May 2016, 22:06 Takafumi INOUE, <ji3gab at yahoo.com> wrote:

> Hi John and all,
>
> I downloaded DFC software from John's github repo. It compiles fine and
> runs on the Jetson TK1 here.
>
> I can see spectrums and hear demodulated signals but it sounds a little
> distorted.
> So I injected a single tone from a signal generator and it sounded like
> modulated
> by kind of beep. The spectrum on the panadaptor showed a wider skirt than
> I usually see with non-DFC setup.
>
> The clients I'm currently using are KK (audio from the TK1) and your
> android application. My radio is ANAN-100 with Hermes_21_Mar.rbf loaded.
> The jetson board receives data from ANAN at the speed of about 980Mbits/sec
> as far as I can see on the system monitor. I'm using a USB-Ethernet adapter
> for communication between the jetson board and the client software.
>
> I want to chase down the cause if I have time this weekend but if you have
> any clue, please let me know.
>
> Takafumi / JI3GAB
> Yokohama JAPAN
> On Friday, 13 May 2016, 20:34, John Melton <john.d.melton at googlemail.com>
> wrote:
>
>
>
> Thetis is the new version of PowerSDR that has been updated to work with
> the new Ethernet protocol. It currently has no special relationship to DFC.
>
> I have a version of DFC running on the Jetson TK1 that I have been working
> on that supports both the old and new Ethernet protocols. It basically
> looks like a Hermes card on the Ethernet and responds to the discovery
> packets just the same as the current Hermes boards. This means it can work
> with the existing PowerSDR or Thetis, along with my Android and Raspberry
> Pi software.
>
> -- John g0orx/ n6lyt
>
>
>
> On 13/05/16 11:18, Barry N1EU wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
> >
> >
> >Is Thetis synonymous with DFC or will the initial release of Thetis
> (running on existing OpenHPSDR hardware plus gigabit ethernet) lack DFC?
> >
> >
> >Thanks,
> >Barry N1EU
> >
> >
>
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
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-- 

-- John
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