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<blockquote data-quote="deeptho" data-source="post: 1132572" data-attributes="member: 215446">About &quot;radio maria&quot;: according to what I see it is indeed locked and&nbsp; DVB data is being received. There is no SDT that is received.So that means it is impossible to see a service named &quot;maria&quot;. Perhaps it is listed under another name, like &quot;service ...&quot;?You could capture some stream data as follows:dvbsnoop -adapter 0 -s -ts -tsraw -b &gt; /tmp/stream.tsand then runtsanalyze /tmp/stream.tsthese commands are from memory, and may contain errors. The zero after &quot;-adapter&quot; needs to bereplace by the correct value.&nbsp; This should be done while neumoDVB locks the signal.Other useful commands:dvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x0 #inspect PATdvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x10 #check for NIT presence (needs at least 30-40 seconds)dvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x11 #check for SDT presenceThere could be something in this stream that prevents correct SDT parsing,or SDT is absentdvbs1 qpsk is the most difficult to receive low symbol rates. I do not know why exactly the symbol rate is limited, but what I can see on &quot;Mars radio&quot; on 30.0W (and with some experiments) is that a nice QPSK constellation appears for a few seconds and is then destroyed. This confirms the absence of a lock. There could be many reasons. For instance, here is another narrowband mux very nearby. The bandwidth of the digital filter may not go low enough, or even the AGC may be saturated. I have tried many parameter settings, but nothing really works.Of course it is like using a screwdriver to hammer in a nail. It can work, but the tool was never made for this and if you want to nail, then buy a hammer...</blockquote>

[QUOTE="deeptho, post: 1132572, member: 215446"] About "radio maria": according to what I see it is indeed locked and DVB data is being received. There is no SDT that is received. So that means it is impossible to see a service named "maria". Perhaps it is listed under another name, like "service ..."? You could capture some stream data as follows: dvbsnoop -adapter 0 -s -ts -tsraw -b > /tmp/stream.ts and then run tsanalyze /tmp/stream.ts these commands are from memory, and may contain errors. The zero after "-adapter" needs to be replace by the correct value. This should be done while neumoDVB locks the signal. Other useful commands: dvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x0 #inspect PAT dvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x10 #check for NIT presence (needs at least 30-40 seconds) dvbsnoop -adapter 0 -s ts -tssubdecode -ph 0 0x11 #check for SDT presence There could be something in this stream that prevents correct SDT parsing, or SDT is absent dvbs1 qpsk is the most difficult to receive low symbol rates. I do not know why exactly the symbol rate is limited, but what I can see on "Mars radio" on 30.0W (and with some experiments) is that a nice QPSK constellation appears for a few seconds and is then destroyed. This confirms the absence of a lock. There could be many reasons. For instance, here is another narrowband mux very nearby. The bandwidth of the digital filter may not go low enough, or even the AGC may be saturated. I have tried many parameter settings, but nothing really works. Of course it is like using a screwdriver to hammer in a nail. It can work, but the tool was never made for this and if you want to nail, then buy a hammer... [/QUOTE]

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