DATV-Express Project
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This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
Re: DATV-Express Project
Group is the multicast group address.
Source is the source address of the UDP stream, if you want to accept anyone set it to 0.0.0.0
if source is set to zero it assunmes the group address is not a multicast address.
Interface is the IP address on your network of the interface you want to use on your current machine.
You will only see multiple interfaces if you have more than 1 hardware interface on your machine.
Clear as mud (I used the same expressions that are used in the MS example I stole the code from).
- Charles
Source is the source address of the UDP stream, if you want to accept anyone set it to 0.0.0.0
if source is set to zero it assunmes the group address is not a multicast address.
Interface is the IP address on your network of the interface you want to use on your current machine.
You will only see multiple interfaces if you have more than 1 hardware interface on your machine.
Clear as mud (I used the same expressions that are used in the MS example I stole the code from).
- Charles
Re: DATV-Express Project
Morning Charles,
Happy day, 73 Franck
Sorry perharps my English is not perfect (google too ) I don't understood.if you want to accept anyone set it to 0.0.0.0
if source is set to zero it assunmes the group address is not a multicast address.
When I press PTT, my queue starts 0 to finish at 100%, what is root cause for you?.Clear as mud
Happy day, 73 Franck
Re: DATV-Express Project
1) Setting it to 0.0.0.0 means it ignores the source address field.
2) Your transport stream bitrate level is too high and does not match the DATV-Express transmitted bitrate (I do no transcoding).
- Charles
2) Your transport stream bitrate level is too high and does not match the DATV-Express transmitted bitrate (I do no transcoding).
- Charles
Re: DATV-Express Project
Thank you
Charles, I have a problem to use UDP.
I have a batch file to genarate TS Stream on UDP/210.0.0.10:10000
When I control the flux on my lan with Wireshark, I can see TS flux from source to the correct destination .
But DATVExpress don't listen, I don't understand why, windows firewall is OK for Datvexpress and ffmpeg.
Can you help me please?
73 Franck
Charles, I have a problem to use UDP.
I have a batch file to genarate TS Stream on UDP/210.0.0.10:10000
When I control the flux on my lan with Wireshark, I can see TS flux from source to the correct destination .
But DATVExpress don't listen, I don't understand why, windows firewall is OK for Datvexpress and ffmpeg.
Can you help me please?
73 Franck
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- udpshark.PNG (94.26 KiB) Viewed 4334 times
Last edited by F1SSF on Sun Apr 21, 2019 8:11 am, edited 1 time in total.
Re: DATV-Express Project
Just a quick report that Art WA8RMC received the latest batch of Serit NIM tuners on April 09.
He is now busy assembling the tuners onto MiniTiouner-Express boards and testing each unit.
73...de Ken W6HHC
He is now busy assembling the tuners onto MiniTiouner-Express boards and testing each unit.
73...de Ken W6HHC
Re: DATV-Express Project
Franck,
Try seting Group to 210.0.0.10 and source to 0.0.0.0
- Charles
Try seting Group to 210.0.0.10 and source to 0.0.0.0
- Charles
Re: DATV-Express Project
Hi Charles,
yes it's good, I'm too purist for me source is source ..and me ffmpeg stream it is my source
Many thank's
73 Franck F1SSF
yes it's good, I'm too purist for me source is source ..and me ffmpeg stream it is my source
Many thank's
73 Franck F1SSF
Re: DATV-Express Project
Hi Folks
Finally got an I7 with intel chip set, Limemini/DATV-Express is performing better, manual is a great help too...THANKS!
Firstly: on S2 QPSK as I increase the Msys from 2.5 to 3 the sound on MT express and Divisor is fine
However sound doesn't work on my Strong Sat box @ <2.5Msys but is fine >3Msys
Can anyone suggest if this stems from the Express/Lime or the Sat box
Secondly: when Msym is increased above 3Msys the twiddle factor has been a challenge to get right
Whilst experimenting sometimes different adjustments require major twiddling
Is there any Twiddle on the fly, auto-twiddle or twiddle calibrator on the horizon, is there a way to calculate it?
There lots of variables and the processing of every PC is different (I could be half the trouble, my processing speed is nothing special)
Increased explanation in the manual would be appreciated, maybe a library of config files or a suggested starting point table
Thanks again for all your great work
Cheers Roger VK5YYY
GOOGLE SAYS: Twiddle- "twist, move, or fiddle with (something), typically in a purposeless or nervous way" sounds familiar
Finally got an I7 with intel chip set, Limemini/DATV-Express is performing better, manual is a great help too...THANKS!
Firstly: on S2 QPSK as I increase the Msys from 2.5 to 3 the sound on MT express and Divisor is fine
However sound doesn't work on my Strong Sat box @ <2.5Msys but is fine >3Msys
Can anyone suggest if this stems from the Express/Lime or the Sat box
Secondly: when Msym is increased above 3Msys the twiddle factor has been a challenge to get right
Whilst experimenting sometimes different adjustments require major twiddling
Is there any Twiddle on the fly, auto-twiddle or twiddle calibrator on the horizon, is there a way to calculate it?
There lots of variables and the processing of every PC is different (I could be half the trouble, my processing speed is nothing special)
Increased explanation in the manual would be appreciated, maybe a library of config files or a suggested starting point table
Thanks again for all your great work
Cheers Roger VK5YYY
GOOGLE SAYS: Twiddle- "twist, move, or fiddle with (something), typically in a purposeless or nervous way" sounds familiar
Re: DATV-Express Project
Just another quick report that Art WA8RMC has shipped a box of 30 MiniTiouner-Express units to England on April 11, for distribution within EU.
It will probably take at least two weeks to clear customs.
73...de Ken W6HHC
It will probably take at least two weeks to clear customs.
73...de Ken W6HHC
Re: DATV-Express Project
Hi Charles and alls,
I am desperate ,I use normally my LIME in UDP input mode, I wanted to test my pluto again, I return with my LIME and I still find my problem, DATVExpress is deaf in UDP. I did not change anything, fire all, stream, listening are OK....
What do you think about this? What do you use like IP segment ? Thank you very much
EDIT POST 21/04/19 > I find my problem.
I had meanwhile plugged my pluto that uses the IP address: 210.X.X.X, but this address is outside the standardized IP values. So I handed 230.X.X.X, and it works, sorry for the confusion.
I corrected the screenshots above whith correct IP, because they could be misleading.
73 Franck F1SSF
I am desperate ,I use normally my LIME in UDP input mode, I wanted to test my pluto again, I return with my LIME and I still find my problem, DATVExpress is deaf in UDP. I did not change anything, fire all, stream, listening are OK....
What do you think about this? What do you use like IP segment ? Thank you very much
EDIT POST 21/04/19 > I find my problem.
I had meanwhile plugged my pluto that uses the IP address: 210.X.X.X, but this address is outside the standardized IP values. So I handed 230.X.X.X, and it works, sorry for the confusion.
I corrected the screenshots above whith correct IP, because they could be misleading.
73 Franck F1SSF
Last edited by F1SSF on Sun Apr 21, 2019 8:17 am, edited 1 time in total.