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] 
> > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 
> > 
> > _______________________________________________ 
> > Freetel-codec2 mailing list 
> > [email protected] 
> > <mailto:[email protected]>  
> > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 
> > 


> > 
> > 

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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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