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DVBfanatik

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Posts: 13
Reply with quote  #1 

Hello,

Just few words to tell you that there is a free software for DVB-S measurement and video receiving.  This software is call Tutioune and will show you true RF level, MER  (S/N), VBER, CBER… and constellations in real time during you are receiving video and audio.

It is a software that allow to tune all parameters of front end and demodulator parameters as very few software can do.

Tutioune doesn’t use BDA driver that tell anything but truth and precision to us about signal strength and quality and that doesn’t allow to change demodulator parameters. Tutioune uses Saa7146a chip driver.

In that way, Tutioune offers all what a demodulator can do.

Reverse side of possibilities : Tutioune runs only – for this moment - with Tuner cards that have a STB0899 demodulator because it talks permanently with the chip registers.

http://www.vivadatv.org//viewtopic.php?f=61&t=108

TT S2-3200 is one of the most frequently  used with Tutioune.

All cards accept SR down to 1MS and some cards like KNCOne HD are very sensitive (-100dBm tested)

 Tutioune is firstly developed for Amateur Radio like me, that do DVB transmission and need tools to observe signals. (DATV = Digital Amateur TV)

So frequency you set is real frequency of tuner so you must subtract your LNB frequency – and you set by yourself 13V or 18V for Vertical or Horizontal polarity and 22 khz if you need to be in upper band.(I use 0V for DATV)

I use it to observe my DVB modulation on 1255 Mhz ( a radio amateur frequency allowed for DATV)

First information here about an old version

http://www.vivadatv.org/page.php?p=tutioune-en

 There are to way to use these software :

-Tutioune V0.9 for measurement and TiouneVideo V0.5 to decode PID, PMT.. and look at video. (Mpeg1 and Mpeg2 for the moment) But you can run 4 or 5 ( or more) instances of TiouneVideo with different PIDs and so you will look at same time to 4 or five channels.

http://www.vivadatv.org/viewtopic.php?f=61&t=79

 Or

 Tutioune 1.0 “all in one” that is  both software in one.

http://www.vivadatv.org/viewtopic.php?f=61&t=105

 So you can observe permanently RF level, MER and constellations and look at video at same time.

 There is no Blind scan for the moment because Radio Amateur have only few frequencies allowed, so no need to scan. But I think it can be add easily(?).

 Another possibility with Tutioune is to send in real time your measures and pictures from video(1frame/sec) to a Web monitor called TiouneMonitor to Vivadatv Forum, so all other people can see in real time what you are receiving.

Here is one of my TiouneMonitor:

http://www.vivadatv.org/tutioune.php?om_id=F6DZP&station_id=2

to see all list of TiouneMonitor:

http://www.vivadatv.org//page.php?p=monitor1

Very often I send my receiving from Astra (France24) and you can see the propagation evolution ,because the TiouneMonitor show a graphic of last 2 hours of measurement.

Your Tiounemonitor is created automatically when you press the Web button of Tutioune.

 Tutioune is free and can be downloaded here:

http://www.vivadatv.org/viewforum.php?f=60

 Sure it’s not so universal that Crazyscan, no blind scan and few Tuner cards for the moment, but it can do many things that Crazyscan don’t do for the moment and can set-up your tuner most precisely it can be.

 I have developed Tutioune firstly for Amateur Radio DATV reception but I use it now frequently for satellite receiving/observing.

Future development can add new possibilities…

 I hope some of you will enjoy to use it.

 


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TUTIOUNE Developper. more than 40 DVB PCI/USB cards at home - 4 PC working DVB _ Ham Radio DVB transmission - DATV -
DVBfanatik

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Posts: 13
Reply with quote  #2 
Just to add a second picture to show Tutioune when in video looking mode

Attached Images
Click image for larger version - Name: tiounevideo.jpg, Views: 323, Size: 360.77 KB 

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TUTIOUNE Developper. more than 40 DVB PCI/USB cards at home - 4 PC working DVB _ Ham Radio DVB transmission - DATV -

rys

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Posts: 137
Reply with quote  #3 

I took only a qiuck look and have to admit that "dashboard" of software is magnificent.

GFM

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Reply with quote  #4 
Ham radio DVB... Often thought of that but this is the first time I've seen something developed with this in mind. Very interesting! What do you use to encode the signal?
-gfm.


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updatelee

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Reply with quote  #5 
There are those that have used gnuradio with the ettus usrp todo ham radio dvb.

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DVBfanatik

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Posts: 13
Reply with quote  #6 
I encode all my signal in real time with a Graph made underWindows on my PC, I can capture DVcamera or HDV camera, webcam, webcam 3D... and I create a graph with graphedit to encode in Mpeg2 or H264 with MainConcept codec filters, after that, I multiplex audio and video in a Transport stream signal that I can send to my DVB-S/S2 modulator Dektec DTA107S2 or to my old modulator Newtec DVB 2080 that output a signal on 1255Mhz or 1280Mhz (Ham Radio frequencies for DATV)
I also use another Dektec card to mudulate in DVB-T or DVB-C on  437 Mhz
There are some explanations how to create in real time, with a graph, a ts file from a DVcamera or transmit directly on air on my site http://www.vivadatv.org



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TUTIOUNE Developper. more than 40 DVB PCI/USB cards at home - 4 PC working DVB _ Ham Radio DVB transmission - DATV -
Derrick

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Posts: 197
Reply with quote  #7 
Looks great Alas STB0899 is not state of the art anymore (dvb-s2 up to 30 Mbauds). At least it makes no sense to get such a card if you don't already have one
crazycat

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Reply with quote  #8 
@DVBFanatik: look like your soft not handle DVB-S2 only DVB-S part of STB0899 used. But anyway i'm happy see it soft, today test on WinXP x86 SP3  with S2-3200 And DVB-S/S2 modulator good equipment, useful for calibration RFScan AGC->RFLevel table for different devices with STB6100.

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DVBfanatik

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Posts: 13
Reply with quote  #9 

To Derrick : I have not tested yet max SR value in DVBS2 mode, but I'm not sure that STB0899 stop at 30MSymbols. Here is a part of STB0899 datasheet:

------------------------------------------------

Multistandard demodulation

Compatible with direct conversion tuners

dual 8-bit analog-to-digital conversion

digital RF AGC

wide range carrier tracking loop for offset recovery

Legacy DVB-S and DIRECTV

QPSK

DVB-S2

QPSK, 8PSK

DVB-S2 pilot processing

Up to 90 Mbps channel bit rate

Digital Nyquist root filter

with 0.20, 0.25, 0.35 roll-off factor

-------------------------------------------------
Up to 90 Mbps channel bit rate” So I am surprise with your value of 30 Mbauds....
I will test as soon as possible with my DTA107S2 sending great SR values to TT S2-3200.
How do you  know that value? have you already tested, and are you sure it was not a restriction the software you use.
As far as I know, as I program myself STB0899, writing what I want in its registers, I can make it run at 90 Mbps....

And some cards like KNCOne HD with a TDA8261 + STB0899 are the best in sensibility I have never measured ( -100 dBm as written in the datasheet of these card -and I have seen that most of cards write -65 dBm sensibilty...) but all tests have been made in december 2010, perhaps some new cards are better now and perhaps
I have tested sensibility of all my PCI/USB cards with a Dektec DTA107 modulator in DVB-S mode set at -40dBm SR1000 to SR=4000kS, HP attenuators, Spectrum analyzer and Bolometer)
I have bought more than 30 tuner cards to do that…( I am DVB fanatik…)


For CrazyCat:
there are 2 problems :
- With different tuner cards, from on BDA driver to another , STB0899 setup is not exactly the same, and STB6100 parameters are not always the same ( we can change AGC1 return action with different values written in STB6100 registers so STB0899 will not receive same information) .If you change little AGC1 or AGC2 reference, units RF values are not the same, ( you can test these changes in Tutioune) . If you change BaseBAnd Gain of STB6100 you will see different AGC1 units ( the only value given by BDA driver I think, and never same way from one card to another) So it will be difficult to have a standard calibration.
- to compute RF level, I take many parameters parameters : STB6100 AGC parameters, STB0899 AGC1 and AGC2 parameters and SR value and finally compute RF level with AGC1 units and AGC2 units and must do a correction using  STB6100 baseBand Gain. I suppose that BDA drivers don't give all these 3 values.

RF level indication fidelity in Tutioune is the best when you keep default setting I give when starting the software.

So I think it's a great difficulty to do that for "different devices with STB6100", knowing that STB0899 and STB6100 setup are rarely same from one trade to another.

But we can think to a way to do that the best we can…

Yes, for the moment, I have not add DVB S2 mode to Tutioune because I don’t know Ham Radio station that can send this kind of modulation today so DVB-S2 what not the first target and firstly Tutioune was a little tool just to make measures, not to demodulate.

Today it can read PAT, PMT, PID , NIT..  tables and demux to finally decode Mpeg1 and Mpeg2

I think I will add DVB-S2 demodulation and H264 decoding, but it takes time!

Remember that I don’t want to make a software like great DVBviewer, Tutioune is not made for watching TV, it’s just an accident if we can watch Video with it (even different video at same time)

I am just  amateur. It’s the first software I have ever made under Windows, having just a little practice under DOS by programming little exercises in Basic in 1982-83…and developped some tools in Assembler for my PIC projects. So I have to learn at same time how to program..

2 years ago I have never written any line of code under Windows.

So remember, I am not a professionnal developper …having just heard of Fortran when I studied at University in 1970.

Using Graph was my big revelation to create my transportStream to modulate DVB and after, I was just frustrated not to find any good software for DVB measuring. So I tried to make a little tool for that. Tutioune was born and firstly to answer my Ham Radio needs.


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Derrick

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Posts: 197
Reply with quote  #10 
Quote:
Up to 90 Mbps channel bit rate” So I am surprise with your value of 30 Mbauds....

Maybe I'm wrong but from what I found the limit for the dvb-s2 demodulator ist 30MBaud http://linuxtv.org/wiki/index.php/STMicroelectronics_STB0899

Channel rate is probably referring to the bandwidth of the interface.

DVBfanatik

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Posts: 13
Reply with quote  #11 
Yes you are surely correct. I currently only use DVB-S and I know I can go up to 45 MSymbols/s, but for DVB-S2 the datasheet show a limit of 30 MSymbols/s . I have never noticed that before.As, in Ham radio transmission we are exclusively in SCPC mode, we don't reach such  values and for efficienty in power we prefer often for DX(long distance) to use very low SR like 1MS/s and the first thing I do when I get a new card is to test if it accepts 1MS/s.and it's a good test because it's more difficult to have a good lock on 1MS/s than 27,5 MS/s
So, thank you for showing these difference in max SR accepted between DVB-S and DVB-S2



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TUTIOUNE Developper. more than 40 DVB PCI/USB cards at home - 4 PC working DVB _ Ham Radio DVB transmission - DATV -
crazycat

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Reply with quote  #12 
SR limit is 30Msps.

So 30*3 give theoretical maximum 90Mbps (for 8PSK).


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Strong offset dish 0.95m on Powertech DG240 motor + ALPS BSTE8-751B Ku-Universal LNB. Variant CA-902 0.95 offset dish with 3xDreamSat DS-8 Ku-Universal LNBs (13E+4.8E+4W) + Variant CA-600 Ku-Circular LNB 36E + DiseqC 1.0. STB: GI8120 Lite. PC DVB: Omicom S2 PCI; TBS 6983 PCI; TBS QBox-CI USB(5980), 5927.
Derrick

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Reply with quote  #13 
Quote:
So 30*3 give theoretical maximum 90Mbps (for 8PSK).

no, because this would require an error free channel

majortom

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Reply with quote  #14 
there's a calculator here
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Derrick

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Reply with quote  #15 
Who needs a calculator for 3x30?   The point was that there will be always some redundancy necessary in a real transmission channel.
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