Quote from F4FDW

hi Tony

Very nice , your test with sr35 , have you decode my sr35 Stream yesterday on qo100 ? I see you use the rtl 2832 sdr , with ocxo or simple quartz ? I have test the dvb gui with pluto on ubuntu + mono , it work

73 f4fdw Laurent

Hi Laurent yes thank you for my test at SR 35 8PSK it is not very easy to receive for my reception it is not fast for encoding I spent almost 40 minutes on the GUI, I tried your signal as you told me I see the constellation no video, when there is a lot of traffic for testing sr35 and difficult I tried I none in TX, the GUI should be much faster and to be able to receive low signals, SWL - markro92 to be able to give more sensitive reception

73 Tony IK1HGI

SR 25 FEC 8PSK

hello here today January 1, 2021 a test with the program DVBS-GUI V2.0.21 of the author SWL Marckrm 92 the program is on the forum AMSAT. DL, my description is displayed in the system SR25 FEC 8psk the encoding always be very clear but slow, at the end we have the perfect constellation takes place the encoding of the immanine you can get you notice constellation of 8 dots that already the program has encoded, just wait for the VLC that loads the encoding data, I disabled audio between audio and video has a slight delay of the encoding, where I show the points of injury the sign with the yellow circle all the maneuvers of the movements as you work in the system SR25 has remember purpose of experimentation.

73 IK1HGI Tony

SR 25 FEC 8PSK - YouTube

@SWL - markro92 Today I have been all afternoon receiving signals SR25 16psk FEC 8/9, SR35 16psk no encoding SR35 32Apsk fec 8/9 no encoding use DVBS-GUI how do you have to behave and how can I do these encodings I think the great VLC can not give the signal of the video what program can be used other than VLC? I do not think it is GUI does not give the signal of encoding? of the Video

73 ik1hgi Tony

Hello all

test on OSCAR100 with DVB gui and sr25 in 8PSK with vidéo , test ok but with 16apsk and 32apsk no vidéo , constelation only .

73 F4FDW Laurent

Hi to all

test on OSCAR 100 with DVB-GUI and sr25 in 8PSK with video ok for perfectly ok test, still a disappointment of the DVB-GUI fails to display the signal SR 25 FEC 16apsk and 32apsk I do not see friends who do test ...!!!! no video only constelation, now to understand if it is the VLC that does not work of the video I have the DVBS-GUI does not work to receive video signals?

73 Tony IK1hgi

swl-markro92 today still tests with friends sr25 16apsk nothing only constellation

73 tony IK1HGI

Hi,

Is there a solution to work with a limesdr USB ?? (not the mini)

I tried a lot with no succes.

Onno pa0ono

I reply to my own post.

Dear Marcel (Markro)

Limesuite.dll is the culprit.

Replace that dll with de limesuite.dll from the latest official version from sdrconsole and voila dvbs-s2 gui sees my limesdr usb.

VLC player gives nice video ( network udp://@127.0.0.1:8888)

GRTZ

Onno pa0ono

Hallo,

My first DATV-RX-Test.

The Software is a little bit tricky.

But I am happy.

Quote from SWL - markro92

Hi Tony,

http://v.1337team.tk/dvb-s_gui_amsat.zip

^ There, as always.

I forgot to write a post for it, because the forum didn't let me post messages a few weeks ago.

There were only minor changes anyway.

At the moment i'm working on a bigger release (v2.1) which i plan to release mid December.

Right now i do changes to the demodulator, and a partial rewrite of the whole codebase.

Main features will be:

- Receiving multiple transponders at once

- Scanning a frequency range for transponders and detecting settings automatically

- Saving common transponder locations and grouping them

- 16APSK and 32APSK support

- Displaying the Signal to Noise Ratio

- Increasing performance by supporting AVX for some of the worker threads.

- Linux Release (probably Debian or ArchLinux)

Optional Features:

- OpenCL support, mainly for offloading LDPC decoding to the GPU.

- Port to Raspberry PI 4

Display More

Will you be releasing this new version soon ? Looking forward to it !

Quote from M1CTK

Rilascerai presto questa nuova versione? Non vedo l'ora!

Demodulatore Software DVB-S - Pagina 37 - Software - Forum AMSAT-DL (amsat-dl.org)

Quote from F4FDW

hi Tony

Very nice , your test with sr35 , have you decode my sr35 Stream yesterday on qo100 ? I see you use the rtl 2832 sdr , with ocxo or simple quartz ? I have test the dvb gui with pluto on ubuntu + mono , it work

73 f4fdw Laurent

f4fdw Laurent sorry very busy delay of sr25 experiments for rtl 2832 sdr key no I use RTL.SDR 2832 I think it is like yours, the signals are very stable to receive 73 ik1hgi Tony

Quote from ik1hgi Tony

Demodulatore Software DVB-S - Pagina 37 - Software - Forum AMSAT-DL (amsat-dl.org)

>> At the moment i'm working on a bigger release (v2.1) which i plan to release mid December.

Quote from M1CTK

Hello yes I'm using Version 2.0.21 DVB-GUI for performance still are not good to receive 16apsk 32apsk only the possibility 8psk made many tests, if SWL - markro92 can give announcement of the New version I can not give good indications we are waiting! !!! with the 120x100 dish and I receive good signals without problems using the Minitiuone of DD0CW Franck SR25 FEC 32APSK D2 without problems even A16PSK we wait anxiously for the release of the DVB-GUI new version to test

73 ik1hgi Tony

Quote from ik1hgi Tony

Hello yes I'm using Version 2.0.21 DVB-GUI for performance still are not good to receive 16apsk 32apsk only the possibility 8psk made many tests, if SWL - markro92 can give announcement of the New version I can not give good indications we are waiting! !!! with the 120x100 dish and I receive good signals without problems using the Minitiuone of DD0CW Franck SR25 FEC 32APSK D2 without problems even A16PSK we wait anxiously for the release of the DVB-GUI new version to test

73 ik1hgi Tony

No I nel senso della versione 2.1

26-01-2121 tonight I try again the two program, something interested good video Miniturne and DVD-GUI Version 2.0.21 does not receive the system sr35 16apsk D2 MER 15, 0 we are always unexpected ... of the new version

73 Tony IK1HGI

Hello Markro92, meanwhile, congratulations on your software.
I would like to ask you if there is a way to drive the frequency of the dvb-s gui from the outside.
I ask you this because the use of the USB stick is often convenient in conjunction with the minitiuone during DATV operations.
My idea is to be able to drive the dvb-s gui frequency and symbol rate with a click on the signals of the spectrum of the Pluto controller also / or separately in order to have 2 receivers at will.
In case you could make a system like the minitioune that accepts UDP or TCP packets, or how it gets good based on your characteristics. This also solves tuning problems, which are often not simple and would speed up the decoding
If you need clarification do not hesitate to write to me.

Thank you

73

Roberto IS0GRB

Hello,

I try to decode the 1,500 WB Bacon. [90cm mirror, LNB-unmod/POTY Vers. 2. 0. 21] with PLUTO. NB (RX/TX) works fine. The IP Plot does not show circles, although there is enough level. So the decoding doesn’t work. Where should I look?

Best regards,
Rolf, DD9PR

Quote from DD9PR

Hello,

I try to decode the 1,500 WB Bacon. [90cm mirror, LNB-unmod/POTY Vers. 2. 0. 21] with PLUTO. NB (RX/TX) works fine. The IP Plot does not show circles, although there is enough level. So the decoding doesn’t work. Where should I look?

Best regards,
Rolf, DD9PR

Hi Rolf,

try to reduce gain, anyway, it takes a lot of time to lock the constellation (10-15 sec in my case). Parameters seems ok but there's an anomaly in the Bandwidth parameter. You have to see a grey band that cover the centered signal. I dont' see this greyband, may be 500000 is too much. Try to tune without changing the bandwidth, leave the same value showed when the app is open first time.

73 and regards.

Hey SWL - markro92 ,

I'm now playing around with VCM/ACM, does your software support it?
I've created a basic sample using GnuRadio and DVB-S2 VCM module (https://github.com/drmpeg/gr-dvbs2).
After required conversion from fp32 to int16, it looks as the app correctly finds the modcod, but does not always recognize pilots (they're on) and correct roll-off (0.2).

Also, no output to file and the constellation looks 'combined'.