Blindscan on linux with tbs cards

deeptho

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My Satellite Setup
Wavefrontier T90, Laminas 120cm, 2 other dishes; tbs 5927, tbs6904, tbs6909x, tbs6903x, tbs5990, tbs6981,tbs5927
My Location
Europe
I have written that using the tbs drivers 6903x can tune to the specific freq but 6909x does not.
But why neumo drivers don't work with 6903x at least ?
Why do you think I would be able to guess the answer to that question? I already gave possible reasons of the "guess type".

If you wish to get help then you need to provide information that can help find the cause...
 

tasoss

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My Satellite Setup
6903,6903x,6909x 6908 etc. Dishes on various satellites(7east,39east,30w,8w etc) Windows for blind scanning and linux for channel scanning.
My Location
Greece
Why do you think I would be able to guess the answer to that question? I already gave possible reasons of the "guess type".

If you wish to get help then you need to provide information that can help find the cause...
Thank you for your help.
ps: Just in case you didn't see my previous message
I can give you access and see by yourself. Tell me how i can contact you.
------------------------------------------------------------------------
I am available to provide whatever you want. Just ask me.
 

deeptho

Specialist Contributor
Joined
Apr 7, 2006
Messages
764
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My Satellite Setup
Wavefrontier T90, Laminas 120cm, 2 other dishes; tbs 5927, tbs6904, tbs6909x, tbs6903x, tbs5990, tbs6981,tbs5927
My Location
Europe
Thank you for your help.
ps: Just in case you didn't see my previous message
Yes I noticed that. I also noticed that you did not want provide extra information....
Let us first try that. For any bug report, the minimum needed is
-which command did you start, with which parameters
-what appeared on the console (as text, not a screen shot, not omitting some parts)
-what drivers are you using (cat /sys/module/dvb_core/info/version)
-what appears in /var/log/debug (or similar file which kernel debug output)

I just double checked at home. neumo-tune and stid135-blindscan work as expected with the current drivers
on tbs6909x. I did not try 6903x because I do not have it in my pc.

So I can tell you "it works for me", but that is as useful for you as you saying to me "it does not work for me".
It brings us no closer to any solution.
 

tasoss

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Messages
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Reaction score
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My Satellite Setup
6903,6903x,6909x 6908 etc. Dishes on various satellites(7east,39east,30w,8w etc) Windows for blind scanning and linux for channel scanning.
My Location
Greece
Sir, i am not here to spam or troll.
I need to take a serious decision for my job.
I am giving you total control and you are telling me i don't WANT to provide info.
For God's sake!
I am not also here for creating problems or arguing with people. Really.
Ok i will send you send the info that you have asked from now on.
Thanks again for your help.
 

tasoss

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Messages
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My Satellite Setup
6903,6903x,6909x 6908 etc. Dishes on various satellites(7east,39east,30w,8w etc) Windows for blind scanning and linux for channel scanning.
My Location
Greece
Hello again.
I am including the things that you have asked.
The debug output can be found here

cat /sys/module/dvb_core/info/version
type = "neumo";
version = "1.6";
The command is

stid135-blindscan -cblindscan -a 2 3 4 5 6 7 8 9 --rf-in=0
and the output is here and the transponders found here

I have also included blind scan results from 6903x (using TBS's blind scanner) here

Moreover using neumodvb the results are as expected (simular to the results of 6903(not X) and 6903x(using TBS's app)).
 

deeptho

Specialist Contributor
Joined
Apr 7, 2006
Messages
764
Reaction score
463
Points
63
Age
57
My Satellite Setup
Wavefrontier T90, Laminas 120cm, 2 other dishes; tbs 5927, tbs6904, tbs6909x, tbs6903x, tbs5990, tbs6981,tbs5927
My Location
Europe
I think I finally understand what you mean: your earlier message suggested that scanning does not work and finds only one transponder, but your log files now show that it is all working mostly correctly and that you are probably wondering about
why there are no frequencies found above 12500Mhz.

The answer is simple: it does not find any peaks there. The reason that neumodvb finds more peaks is that it uses a different (better) peak finding algorithm. The fact that the missing ones are above 12500Mhz is just a coincidence.

What satellite is this?
 

tasoss

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Joined
Sep 24, 2024
Messages
16
Reaction score
1
Points
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My Satellite Setup
6903,6903x,6909x 6908 etc. Dishes on various satellites(7east,39east,30w,8w etc) Windows for blind scanning and linux for channel scanning.
My Location
Greece
I am glad! Really.

How can you explain the fact that windows blind scanning using 6903x can find the frequencies that we are talking
about and the linux version does not ? I mean does it have to do with the drivers(i don't mean that it's your fault)? I suppose the peak finding
algorithm that you are talking about is software based. So they may be missing something in Linux implementation.(I am asking out of curiosity)

The sattellite is Eutelsat 16A at 16.0°E.
I would like to ask you a question , in case there is no solution but to use neumodvb.
How difficult is it to change stid135-blindscan in order to use your better algorithm ?
I am in no way good in C/C++ but i could give it a try and maybe with some help to achieve it.
Currently i am investigating the source code of neumodvb. You have created great stuff.
Thanks again!
ps: If you need access to the satellite please let me know.
 
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