didn't improve
anything.
Hope to find a real station on air soon.
Regards
Gerhard OE3GBB
-Ursprüngliche Nachricht-
Von: David Rowe [mailto:da...@rowetel.com]
Gesendet: Dienstag, 15. Mai 2018 10:15
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comp
Gerhard OE3GBB
-Ursprüngliche Nachricht-
Von: David Rowe [mailto:da...@rowetel.com]
Gesendet: Dienstag, 15. Mai 2018 10:15
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison, on air tests
Hi Alan,
Yes finding FreeDV activity (especially in VK) can be a challenge,
l.com]
Gesendet: Dienstag, 15. Mai 2018 10:15
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison, on air tests
Hi Alan,
Yes finding FreeDV activity (especially in VK) can be a challenge, hopefully
this will change as FreeDV becomes more competitive wit
2018 01:42
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison
Hi David
fair enough
here is some good and reasonable recent work by one of your own.
http://search.ror.unisa.edu.au/record/UNISA_ALMA11140739050001831/media/digita
l/open/9916110811
> I think that I earned a ticket for my point of view.
>
> 73, Helmut, DC6NY
>
> -Ursprüngliche Nachricht-----
> Von: glen english
> Gesendet: Montag, 7. Mai 2018 01:42
> An: freetel-codec2@lists.sourceforge.net
> Betreff: Re: [Freetel-codec2] 700D vs S
ai 2018 01:42
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison
Hi David
fair enough
here is some good and reasonable recent work by one of your own.
http://search.ror.unisa.edu.au/record/UNISA_ALMA11140739050001831/media/digital/open/991611081
On 07/05/18 15:26, Alan Beard wrote:
> *One point I see as missed. *We HAMs are not allowed encryption
Not strictly true… in a bona-fide emergency or when controlling a remote
automatic station, the ACMA rules permit it. (ACMA LCD section 8 3A;
pages 9 and 10 of
http://www.wia.org.au/licenses/ass
Hi David and Glen,
> On 07/05/18 07:45, glen english wrote:
> > SSB sometimes wins because the brain picks up the slack. like with a 0.5
> > second fade.
On listening to FreeDV 700D and DMR, one's brain recognises this "new" accent
and processes
accordingly. I don't think you can say, defi
Hi David
fair enough
here is some good and reasonable recent work by one of your own.
http://search.ror.unisa.edu.au/record/UNISA_ALMA11140739050001831/media/digital/open/9916110811201831/12140739040001831/13140739030001831/pdf
Maybe build into freeDV some sort of recording to disk and FTP
The 700D waveform is designed for subset of those paths. As part of the
testing I'd like to crowd source some samples of where it works and were
it doesn't.
Long term - if the average SNR is there, a waveform can be designed to
pass DV over it. Eventually.
DV over HF is a tough problem, an
SSB sometimes wins because the brain picks up the slack. like with a 0.5
second fade.
In my opinion, for HF paths, to be broadly useful , voice DV modes need
to pass an HF fading simulator, targeted at vertical incidence work, and
bear in mind, that the channel profiles are quite different for
Hi David,
no problem with your point of view. The manhood needs guys with visions. Good
luck.
73, Helmut, DC6NY
-Ursprüngliche Nachricht-
Von: David Rowe
Gesendet: Sonntag, 6. Mai 2018 21:38
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB
but I wonder if the
overall intelligibility has improved?
Cheers,
David
73, Helmut, DC6NY
-Ursprüngliche Nachricht-
Von: David Rowe
Gesendet: Sonntag, 6. Mai 2018 15:31
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison
Hi Helmut,
Coul
wz/Weak_no_nr_yes_nr2.mp3?dl=0
73, Helmut, DC6NY
-Ursprüngliche Nachricht-
Von: David Rowe
Gesendet: Sonntag, 6. Mai 2018 15:31
An: freetel-codec2@lists.sourceforge.net
Betreff: Re: [Freetel-codec2] 700D vs SSB Comparison
Hi Helmut,
Could you pls process the analog parts of Mark's
Hi Helmut,
Could you pls process the analog parts of Mark's sample using the HPSDRs
noise reduction algorithms and post the results here for comparison?
Another gentleman tried the NR2 algorithm last year:
https://www.rowetel.com/?p=5472#comment-80095
However the NR2 algorithm at that time
Thanks Mark! This result would be impressive, if reproducable. We refer to our
tests with 700C together with innovative HPSDRs using high efficient noise
reduction algorithms. As you see, we trust in digital solutions, where we can
detect possible improvement.
73, Helmut, DC6NY
Von: M
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