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Satellite sources of DAB feeds - part 3
Summary of closed issue #28 (= Satellite sources of DAB feeds - part 2)
- In the meanwhile there are lots of radios stations all over Europe using DVB-MPE, use the new tools mpe2aac, mpe2mpa or mpe2ts to extract
- some more DAB streams detected from Italy (RAI) and Turkey, some (orbital) changes over the past months
- German EDI transponder filled with (currently) nine DAB ensembles
- Improvements in Dablin done (frame-align stream not needed any more)
- NRK DAB feed transponder (DVB-GSE??) still not be decodeable by any tool, only a hex editor shows the content
- EDI DAB services from both German BR and RBB as well as VRT (Belgium) started with tests over the internet, use
wget -q -O - https://rbbedi.irt.de:443/services/x | dablin_gtk -f edi -Iwget -q -O - https://bredi.irt.de:443/services/x | dablin_gtk -f edi -Iwget -q -O - http://edihttp.vrt.be:8187/services/x | dablin_gtk -f edi -I -1to listen to, whereas x is the subchannel ID, see https://www.fmlist.org/sendertabelle/dab-ww.php and http://search-hradio.irt.de/ Combining them to a single DAB ETI stream is not 100% possible, but there is a workaround with dropouts - for DVB-IP streams the TSReader now shows the UDP port number since 2.8.55a, alternatively, you get it in Wireshark as well
I've read today that Media Broadcast has been awarded the contract to broadcast DAB+ services for NDR and RBB regional broadcasters for 4 years (+2 optional ones) So, as other Media Broadcast DAB+ emsembles are on Eutelsat 7ºE and Astra 23.5ºE, we should be watching those positions... maybe something appears....
https://www.radioszene.de/142405/ndr-rbb-media-broadcastdigitalradio-dab.html
Well, thanks for your message. But I personally don't expect them via satellite in future as the NDR will be split to regional multiplexes soon.
The only one which might be on satellite is Bundesmux II which starts later this year.
I read some days ago (thanks to online translators) that NDR was going to expand DAB+ this year on some regions, and regionalization of the NDR 1 national programmes would take place in the summer. But as some regional ensembles are found on 7ºEast (Bayern, BW and Hessen) , let's think it could be possible too.....
SDL and D1 are now also on 9 East, 12092H, but in DVB-S2. Readme has been updated.
Remark: BBC is still at 4.8 East.
So.......... we may supose that one of the two current feeds (4.8 E or 28 E) will be removed. Which one do you think will be removed ? I've never understood why the BBC has only one feed, and the two private ones (D1 and SND Dig) have two.
I've tried to look for small carriers near the current known ones, at 7 East (12572 V) and 23.5 East (1264X V), but I don't find anything. 😢
A German DXer informed me that the Turkish transport stream only consists of NULL bytes at the moment.
$ cat ~/Downloads/42e_trt-dab.ts | tsanalyze --pid-list
8191
@jpuigs ok it seems the SFN s not yet active, there are terrwstrial tests already, but they only produce one single service "program 1" without audio.
But I've seen over last weeks on german forums that there are some programms on air. I supose there were sporadic "local" tests.
You are rights the test mux was active on one transmitter only, I think there the Dab muxer is located.
A German DXer informed me that the Turkish transport stream only consists of NULL bytes at the moment.
$ cat ~/Downloads/42e_trt-dab.ts | tsanalyze --pid-list 8191
Still NULL packets.....
Anyone spotted BMux2 already?
Yes, I found it, but it's in GSE.
Astra 23,5 East, 12668 V, DVB-S2, SR 1500, 8PSK Both are there, Bundesmux and Bundesmux 2
Depending on the TBS card it says encapsulated, generic or continuous stream. And I fear the MIS is 1 or even 2 (depending on the card).
So no chance for us (yet).
Have list it in the README.md, see https://github.com/piratfm/eti-tools/commit/c7ef54b72833b41cf59b23156f144b64b21ce5e1
Good and Bad news. But if we can't see what's inside, how do you know they are both Bmux streams ?
If you want to see what's inside, why not using a (Hex-)Editor ... ?
Here is a longer file, captured by TBS6903x Professional.
23.5E_12668,085_V_1500_(2020-09-26 12.54.15)_dump.zip
During the current tests German forums and Facebook reports show the same only service "Programm 1"
After a while the old DVB-S Stream will disappear for sure as GSE is much more modern and accurate.
If someone wants to try with a SDR (software defined radio) solution: Use a DVB-T (!!) Stick with E4000 Tuner (due to the very high frequency above 2 GHz) or HackRF or other and http://www.pabr.org/radio/leandvb/leandvb.en.html and then please report if you can see and use (!) the BB frames.
If you want to see what's inside, why not using a (Hex-)Editor ... ?
I did it, but I didn't notice anything about Bmux or Bmux2. Maybe I looked for too fast...... Which editor are you using ? (Speedview?) I use Hex editor neo, but I think yours is "lighter". I only have two RTL-SDR DVB-T sticks RT820, so I can't test.....
The build in editor in Transedit is fine, as well. This is a shareware called Speed Commander, but any other should be OK, too.
Let me try with my dongle, as I did it for neighboring DLF on the same transponder in the past.
@andimik great catch! Unfortunately I think old BMux feed will disappear soon. The new GSE stream has a better spectral efficiency. Fortunately yours TBS 6903x, Cine S2 V7 and MAX SX8 is able to receive the GSE correctly. It's done by reencapsulation into a pseudo TS generated by the ECP3 media bridge: https://rickcaylor.websitetoolbox.com/post/show_single_post?pid=1312613794&postcount=30&forum=106995
TBS and DigitalDevices cards however differ: TBS only reencapsulates the GSE packets DigitalDevices reencapsulates the whole BBFrames.
However there's still one piece of software missing that extracts the content of the IPv4 packets out of the GSE packets.
Actually, there is libgse that can decapsulate network packets from GSE, but I found only testing tool as reference of how to do that, and it uses .pcap files, not a raw BBframes: https://forge.net4sat.org/opensand/libgse/blob/master/test/test_encap_deencap.c
My TBS5927 shows 2 Muti streams, but none of them has output stream ¿¿¿¿???? I think 5927 is not suitable......
Forget 5927, this card cannot handle that at all. I am not sure if the Multistream here is correct or not.
Well, don't buy it, you will be very angry like many others according to the TBS forum. It's a massive step backwards for a feed hunter.
Believe me, I have it as well.
As long there is no better driver and no software to handle this kind of streams you only can use notepad.exe or your favorite hex editor to view the raw input.
And: There is no USB solution yet. I had to buy a desktop PC.
Thanks, I didn't plan to buy anything... just asked to know if any USB would see something. The only TBS that lets you "see" raw input are 6903-x and 6909-x pcie cards ?
Yes, newspaperman also mentioned two other cards.
With 5927 you might see some bytes. But not a constant stream.
