We've also used it to send an email when a FreeDV signal was received:
https://github.com/drowe67/freedv-gui/blob/master/USER_MANUAL.md#udp-messages
-David
On 28/12/20 4:25 am, [email protected] wrote:
The purpose of that, was to update the QSO finder when stations
started up.
But it was never implemented on the QSO finder side.
Walter/K5WH
*From:* Mooneer Salem <[email protected]>
*Sent:* Sunday, December 27, 2020 3:14 AM
*To:* [email protected]
*Subject:* Re: [Freetel-codec2] FreeDV 1.5 - 700E and OFDM compression
There's some code in FreeDV to open a UDP port and have it accept
commands. I haven't looked too much at it, so perhaps David would know
more.
-Mooneer K6AQ
On Sat, Dec 26, 2020 at 7:06 PM Al Beard via Freetel-codec2
<[email protected]
<mailto:[email protected]>> wrote:
Hi Mooneer and any other developers,
Could a "connetivity" mechanism to/from the FreeDV GUI app such
that another app can trigger Tx and get an Rx
valid signal?
The "another" app could be "Asterisk", "HamVOIP" or "mvoice" etc..
Alan VK2ZIW
*On Sun, 20 Dec 2020 15:48:33 -0800, Mooneer Salem wrote*
> Yeah, I'm not 100% sure if it's a backwards compatibility issue
or some bug but reverting to 1.4.3 did seem to help for one or two
people.
>
> BTW, the measures I took thus far to reduce misreports to PSK
Reporter are still not 100%; my callsign was reported as "K6TQ"
earlier instead of "K6AQ". We'll have to look more into FEC at
some point for sure.
>
> -Mooneer K6AQ
>
> On Sun, Dec 20, 2020 at 2:49 PM David Rowe <[email protected]
<mailto:[email protected]>> wrote:
>
>
> Yes its should be backwards compatible, so if it's a
reproducible issue we should fix it. IIRC I have a ctest that
checks backwards compatibility for 700D.
>
> - David
> On 21/12/20 9:13 am, Mooneer Salem wrote:
>
> David, quick question. Is 1.5.0/1.5.1 supposed to be
backwards compatible with 1.4.3? At least a couple of
people have reported that received signals were garbled.
(I recorded myself via a WebSDR earlier today and was able
to decode myself with 1.5.1, FWIW.)
>
> -Mooneer K6AQ
>
> On Sun, Dec 20, 2020 at 2:37 AM David Rowe
<[email protected] <mailto:[email protected]>> wrote:
>
>
> Hi Al,
> I don't run the QSO.freedv.org
<http://qso.freedv.org/> website - you'll need to talk
to the maintainer.
> SM1000 support for 700E is possible (it's about the
same CPU as 700D), if some one wants to work on it
.... however it would be nice to get the band pass
filter running on the SM1000 to support the
clipper/compression. To date we've left the BPF out
of the SM1000 due to CPU, so some optimisation work
required there.
>
> - David
>
> On 20/12/20 3:34 pm, Al Beard via Freetel-codec2 wrote:
>
*Thanks David,*
> *
> *
> *I've recompiled the Codec2 library with the
latest on my "parrot" repeater.*
> *(Fedora 30 armv7hl) (a Pi clone, Banana Pi M2
Berry)*
> *But error:*
> */data/home/alanb/bin/parrot: undefined symbol:
freedv_get_uncorrected_errors*
> *
> *
> *I'll look into that....*
> *
> *
> *I've compiled the Ver 1.5 devel FreeDV GUI on
Fedora 29 x86_64, my "main" box.*
> *
> *
> *We are having some good Sporadic E openings on
10m and 6m between here and New Zealand.*
> *
> *
> *Can we have some frequencies on the
QSO.freedv.org <http://qso.freedv.org/> website
for bands 17m and up such that there*
> *is a "standard" on each band?*
> *
> *
> *Also, is there a possibility the SM1000 can run
mode 700E?*
> *
> *
> *Alan VK2ZIW*
> *
> *
> *
> *
> *On Sun, 20 Dec 2020 13:50:33 +1030, David Rowe
wrote*
> > Thanks Walter and Mooneer. I'd be interested
to know the RMS power you can develop with 700D/E
with the clipper option.
> > - David
> >
> > On 20/12/20 10:30 am, Mooneer Salem wrote:
> >
> > Looks like it's working reasonably well,
though the 20 meter band fell out shortly
after we all got it installed. More testing
tomorrow for sure. :)
> >
> > -Mooneer K6AQ
> >
> > On Sat, Dec 19, 2020 at 2:26 PM
<[email protected] <mailto:[email protected]>>
wrote:
> >
Have it loaded and running now.
> >
> > Working on a couple others as I type
to get some end to end testing.
> >
> > Many thanks David, and best of the
holidays.
> >
> > Walter/K5WH
> >
> > -----Original Message-----
> > From: David Rowe <[email protected]
<mailto:[email protected]>>
> > Sent: Saturday, December 19, 2020 3:34 PM
> > To:
[email protected]
<mailto:[email protected]>
> > Subject: [Freetel-codec2] FreeDV 1.5 -
700E and OFDM compression
> >
> > I've been working on a new FreeDV 700E
mode, and some compression for FreeDV 700D
and 700E to increase the average power. A
Christmas present for you to play with
> >
> > 700E is designed to handle fast fading
like 700C, but like 700D has powerful FEC.
My bench tests indicate 700C & E are
equivalent on moderate fading channels
(2Hz dopdler/2ms spread), but on very fast
fading (4Hz/4ms) 700E does better - 700C &
D fall over. 700D works better at lower
SNRs on slow fading channels.
> >
> > I've also been testing against
compressed SSB, which as Helmut suggests
is pretty hard to beat, as it's so robust
to fading. However 700E is hanging on
quite well with fast fading, and becomes
noise free as the SNR increases.
> >
> > -/-
> >
> > The second innovation is compression
of the 700C/D/E waveforms, to increase
average power significantly.
> >
> > Please be careful adjusting the Tx
drive and especially enabling the Tool -
Options - Clipping. It can drive your PA
quite hard. I have managed 40W RMS out of
my 75W PEP transmitter. Make sure your
transmitter can handle long periods of
high average power. My IC7200 and
> > FT-817 seem OK.
> >
> > At the same equivalent peak power -
700D is doing well when compressed SSB is
-5dB SNR and rather hard on the ears.
> >
> > -/-
> >
> > Peter VK3RV, Jose LU5DKI, and Barry
VK3BRT tried 1.5.0 last night and report
it works on real HF channels.
> > The latest manual describes the new
features:
> >
> >
https://github.com/drowe67/freedv-gui/blob/118cb66ee4679518185db871ec0ae68071c406a4/USER_MANUAL.md
> >
> > You can download Windows 32 and 64 bit
versions of FreeDV 1.5 here:
> >
> > http://rowetel.com/downloads/freedv
> >
> > -/-
> >
> > I'd be interested in any feedback. If
you have an interesting test case (e.g. a
bug or comparing SSB to FreeDV), pls send
me off air recordings of signals (FreeDV
Tools-Record File from Radio). That helps
me make objective comparisons. Recordings
are much more useful to me than anecdotes
or subjective reports.
> >
> > Thanks,
> > David
> >
> >
_______________________________________________
> > Freetel-codec2 mailing list
> > [email protected]
<mailto:[email protected]>
> >
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
> >
> >
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> > Freetel-codec2 mailing list
> > [email protected]
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> >
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> >
> >
> >
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> ---------------------------------------------------
> Alan VK2ZIW
> Before the Big Bang, God, Sela.
> OpenWebMail 2.53, nothing in the cloud.
>
>
>
>
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Before the Big Bang, God, Sela.
OpenWebMail 2.53, nothing in the cloud.
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