Posts by F6DZP

    Hi,


    Yes you can use TSA for that, switch the PPM button, send a known frequency using a generator, scan it, get ppm and write it to the MiniTiouner EEprom.

    This is a good solution when you use several MiniTiouner with different PPM correction values, you have no more to change the PPM correction value in the Config.ini, the PPM value is read in the EEprom.


    Jean-Pierre F6DZP

    Hello Peter,


    Thank you for the information.

    I apologize if I disturb you, but I receive very often mails from people that just start to receive QO100 and after installing Minitioune, send me a mail asking why the beacon video is jerky and spend many time to install different codec, uninstall , re install again and spend many time to try to solve a problem that is not from their installation. So I must explain each time that the beacon TS has a problem.

    Yes I understand that, with Corona, it is not easy.

    The beacon video is a reference and all of us hope that the problem with the TS timing will be fixed ASAP.

    Thanks for the effort made by the whole team.


    73s

    Jean-Pierre F6DZP

    Hello,


    Most of time the beacon TS is very bad. As I have said in April,( new version Minitioune V0.9.9.1 )


    Analyzing the TS from Beacon SR1500:

    not only PCR accuracy is very bad but .... PCR/PTS timing is NEGATIVE!!

    that means that the software ask do display video at a time relatively negative (= playback).

    So the demultiplexer/decoder do what it can to try to make up for the backlog.

    This PCR/PTS values change over time and we get more and more jerky video


    When you reset it, it is good only a few days, but every day the PCR/PTS timing loose some ms and so, after n days, is negative.


    It is really annoying that the QO-100 beacon, a reference for all people that begin to work with QO-100, is so bad.

    Minitioune, that uses the Microsoft demultiplexer is very sensitive to very bad TS like that, so gives only jerky video.

    Professional receiver cannot receive also TS with bad timing.


    After 4 months, no solution for that?


    Jean-Pierre F6DZP

    When you run Minitioune, click on "Info" checkbox (under audio level), you will have info about starting status (at left) and TS DVB table analyzing (at right) and at bottom you have a button "License".


    Jean-Pierre F6DZP

    Hello Jonathan,

    You are registered on Vivadatv forum since Sat 29 June 2019 08:47


    I suppose that you have received an email, but gone in your spam ??


    So you can log you since this date.


    Jean-Pierre F6DZP

    Lucio,


    Could you delete this link and the file on your drive.

    Look at the license, you are not allowed to create and share this link.

    This Amsat-dl Forum also is not allowed to prose a link to download Minitioune.


    Since 10 years I have created this software, never an OM has done that.

    Please respect my work.

    I give it free for download.


    For many reason I need to keep the hand on download

    - I answer most of mail about Minitioune, do do the maintenance I need to now exactly which version can be download.

    -Some function of Minitioune work only if you are registered to VivaDATV forum (TiouneMonitor) , so if people can download Minitioune they must be registered and, download ing from Vivadatv I am sure the version they get. I don't want to spend my time to answer to people that cannot make their Tioune Monitor working.

    - If I correct a bug, and change with a new version, I don't want that people could download and old version and makes me difficulties to maintain.

    - I am the creator of this software and and it.


    I ask to administrator of this forum to delete this link.

    Thank You.



    To DK1ZA

    Quote


    even if I am logged in in the vivadatv site I get an error when trying to download the software

    After many test, I am quasi sure that you are not asking to download well when you are logged:

    When you are logged, you search in the index titles the part "Software useful for DATV" and "Download section" and you have all versions of Minitioune and Scan&Tioune you want.

    If you are just logged and use an external link to go directly to the Minitioune download post, you will not be recognized as logged, because you link can correspond to another logging session that is not logged.


    For people that cannot register or have lost their password, just send me a direct mail (my call sign at yahoo.fr) and i help you.


    Jean-Pierre F6DZP

    I have a little TS from the Beacon at SR2000.

    I look at it...

    PCR accuracy is also not very good, but ... but PCR/PTS timing is good (positive)


    OOHHH!

    Yes, I think I have the reason why we have problem with:


    Analyzing the TS from Beacon SR1500:

    not only PCR accuracy is very bad but .... PCR/PTS timing is NEGATIVE!!

    that means that the software ask do display video at a time relatively negative (= playback).

    So the demultiplexer/decoder do what it can to try to make up for the backlog.

    Perhaps this PCR/PTS value change over time and we get less jerky video.


    here are the PCR/PTS_video values for a good TS made by a Minimod at SR2000, the values are about +700ms, so we ask the decoder to render the video 700 ms before the PCR clock corresponding arrives, to let the time to the buffering proccess , decoding process to do their job




    Here is the Beacon at SR2000 we had in March: again the PCR/PTS is positive, we let about 450 ms to the decoder to do the job


    Here is the PCR/PTS timing we have with the new Beacon at SR1500: The PCR/PTS value is NEGATIVE!!!


    So a demultiplexer/decoder process can't go back in time, so do what it can...


    and not only the PCR/PTS is negative but the PCR accuracy is also always very very bad.



    Jean-Pierre F6DZP

    Hi Lucio,


    My main question is not about the solution, we should be able to use different codec, I have tried LAV, Cyberlink, Elecard, MainConcept ... but this search is just a way to find a temporary solution to a problem, but the problem still exist. Some codec can work better on some PC because the graphic card, the CPU etc.. and other codec could be better on another PC . So you have a temporary solution that works on your PC, you have medicine for a disease, but the disease is still there.


    My main question is why the TS received from the Beacon has very bad PCR accuracy when I analyze it.


    73

    Jean-Pierre F6DZP

    Hello,


    I continue to investigate.


    Problem summary:

    - Since we have a new Beacon_TS at SR1500, sometimes, not always, we can get a jerky video when we use Minitioune+MiniTiouner.

    (yesterday morning it was very jerky on my station, this morning video is not jerky...)

    - This problem was never seen when the Beacon-TS was et SR2000.

    - The jerky video depends also of the codec we are using under Windows, I have tested different of them, but when it is better, I don't really know if it is the change of codec or the change of the moment I do next observation after changing the codec..

    - We don't have this jerky video when we receive a DATV station on QO-100 (supposing the TS transmitted is well encoded)



    I take the two statements A and B as the truth:


    A) I suppose that, as Peter and Experts say, the "PCR accuracy" (not the "PCR jitter" ) is correct at the origin (+/- 200 ns) in the TS produced.


    B) I suppose that, as StreamXpert Analyzer says "PCR accuracy is very bad (about +/- 780 µs) when I receive the TS via UDP from Minitioune.


    Remark:

    This Beacon_TS is also a bit "special" compared to our habits : the PCR data used a separate PID. Most of time PCR data uses the same PID than the video data( in our DATV transmission) . Perhaps it is one (allowed) specification that causes the problem?


    analyzing the relation PCR/PST audio and PCR/PTS video seems always good this morning. EDIT : NO!!! NOT GOOD AT ALL,see later post

    but analyzing PCR accuracy gives bad result


    Can the way Minitioune receiving a TS with PCR using a PID different from videoPID could causes the problem?

    Can the computer clock, the Minitioune Clock, anything else influence the result?


    As I say, I continue to investigate...


    73s

    Jean-Pierre F6DZP

    Peter,


    I have written:

    Perhaps your Experts have looked at the PCR PTS at another time in the day, but if they have tested it this morning, they see this very bad result.

    same suggestion than Mike.

    I don't want to discredit anyone, I just want to understand why I have measured this bad values this morning.

    I just want to understand, why we can receive many other stations without problem, why we could receive the Beacon at SR2000 during several months without any problem, and now, very often, we have difficulties to receive it without problem.


    About the use of Octagon SF8008, I though I have well explained why we cannot use it for testing.


    I can send you the TS I have recorded this morning, If your Experts need/want to examine it.

    and if their measurement is good , I will be glad to discuss with them about this difference and understand why I am wrong.



    73

    Jean-Pierre F6DZP

    Hello,


    When I started this morning (6h32 local) the beacon TS was very bad with constant PCR errors (here 8592 errors after 1 mn)


    Octagon SF8008 is not a professional DVB receiver, so we know that this kind of basic receiver can accept errors without showing a problem, because they don't take care of timing, do not try to sync video and audio etc.... This kind of receiver just play the video data and audio data when they come, and don't take care of Ttime stamp.

    (This is the way the HamTV station on ISS was tested before launch and in result HamTV TS produced was very bad with no DVB tables....)

    Sorry, but my opinion is that we should never use that kind of receiver to test a DVB signal, it is a waste of time and I have never seen a professional operator doing that. It does exist professional receiver for that.


    So all the professional analyzer I use says that PCR is too much ( here 639 µs instead of less than 500 nS)


    So I can say that at 6h32 the Beacon signal was horrible about timing, with constant PCR errors. Is is impossible to get a fluid video and audio if we use a professional receiver that take care of PCR PTS or with the Microsoft demultiplexer that take care of PCR PTS.

    Yes, if I use a basic receiver, I could see a fluid video, but that doesn't indicate that the TS is DVB compliant regarding TR101 290.


    Perhaps your Experts have looked at the PCR PTS at another time in the day, but if they have tested it this morning, they see this very bad result.


    73 Jean-Pierre F6DZP


    DL9SEC :

    the 3 TS_leds green show that the MiniTiouner is receiving the TS

    The last TS_led red says that the PC is not receiving the data. ( you can see under the TS leds : "bytes received = 0"


    So the problem comes with the USB transfer.

    I have no answer yet if the version 0.9.beta8 works without changing anything (same MiniTiouner, same USB cable, same USB port..nothing else is plugged to the PC ...


    Could you show what info you have when you click the info button ( all info concerning the detection of devices etc..)


    Jean-Pierre F6DZP

    the Beacon TS doesn't comply. This TS is now very badly encoded.

    Windows decoder is very sensitive to bad timing (PCR/PTS) and VLC support better bad TS.


    If you receive others well encoded stations you will not have this effect.


    Jean-Pierre F6DZP

    Yes, a last update of Windows, one or 2 days before I give the new version of Minitioune for download, disturb now the use of Directshow technology. All software that uses this way for decoding and rendering a video suffers.

    It is the second time that a Windows update give some issue when a software works with Directshow. Last time, we had to wait for a new update.

    Scan&Tioune uses VLC library to decode and render the video. VLC uses its own codec, so doesn't depend of Directshow technology for rendering.

    I could add a VLC rendering mode in Minitioune, but I wait I will know enough about the use of VLC dll. I am just a beginner and Scan&Tioune is a field of research for new technology. When I'm very comfortable with VLC dll, I will add this mode to Minitioune.


    Jean-Pierre F6DZP

    Hi Thorsten DL9SEC,


    About Scan&Tioune:


    Quote


    By using both tuner inputs (A and B)? Or how does it work?


    the software uses both tuner but not always both input, we need one tuner for scanning, one tuner for "Tiouning" and lock on a frequency.

    you can choose which input you want for each tuner, same input can be chosen if you work on the same band for the 2 activities.


    examples:

    You can receive a station on 437MHz ( input B) and scan QO-100 ( input A) at same time.

    or

    you can receive a station on QO-100 ( input A) and scan 437 MHz ( input B) at same time.

    or

    you can receive a station on QO-100 ( input A) and scan QO-100 ( input A) at same time.

    (this is what you can see on the picture joined in may precedent post.


    or

    ....


    Would the Tiny Spectrum Analyser work with the Minitiouner-Express?

    no, it doesn't work with the Minitiouner-Express today.


    Minitiouner-Express is not completely compatible with MiniTiounerPro or MiniTiounerV2, so it complicates my work.

    I think most of my new software will not work any more with Minitiouner-Express.


    MiniTiounerV2 can also be compatible because it can be upgraded to allow it near same fonctionnality as MiniTiounerPro.


    Most of my new software are designed to evolve towards dual receiving, so dual TS possibility will be needed.


    Jean-Pierre F6DZP

    Hello,


    I am near the end of my work on "Scan & Tioune"


    Using a MiniTiounerPro or a MiniTiouner V2, you can scan and receive at same time.

    If you ask auto detection, CAll sign are written on the spectrum

    just click on the call sign and you get the station.


    So it will be available very soon now.



    73

    Jean-Pierre F6DZP

    Hello,

    @G8LCE,

    I have looked at your 2 screen shots (using V0.8s and V0.9beta8)

    It is normal that you receive with V0.8s and not with v0.9beta8

    * with the V0.8s we can see that the real frequency of your station is 747 543 kHz, you have asked 747 938 kHz so at about 400 kHz higher ,just the limit to lock a SR333 station (500kHz bandwidth wide)

    * with the v0.9beta8 you are asking for 748 195 KHz, at 650 kHz from the real frequency, too high for the derotator to reach the signal (500 kHz wide).


    So your problem is not the version of Minitioune, but the frequency asked that is not the same. I know I have to make a manual and explain how to use 3 things :

    - the ppm corrector in your minitiouneConfig.ini file

    -the procedure to do a good use of "adapt offset" and keep it

    - the "Copy freq found" that can recenter you on the good frequency


    It is normal that It is not evident for people that don't have exactly the meaning of what these parameters offer.

    I apologize, but had not yet time to write all explanation.


    Jean-Pierre F6DZP

    Hello,


    In 2 weeks the MiniTiounerPro V2 will be available.


    Many features can be found on this receiver:

    - ready for receiving 2 stations at same time (useful for Duplex on Oscar-100) using next Software Dualtioune.

    - 2 x RT5047 that produce 13v or 18v (400mA protected) for your LNA or LNB, one separate voltage for each different F-plug

    - the MinitiounerPro has a design that allows the lowest I2C noise , Minitioune refresh rate can be 100ms (max 180 ms with a very slow processor like the Atom processor in my Pluto or Chuwi Tablet)

    - 2 leds indicating TS1 and TS2

    - 2 leds indicating LNB A/B voltage

    - allows the use of LCD or Oled display

    - TS1 and TS2 parallel output => we can use for developing IP interface or direct transmission to a modulator or ...

    - 4 GPIO input/output

    - 8 output ( with 8 leds) to drive relays, preamplifier ... depending the RF band you are using

    ...

    The MiniTiounerPro V2 is ready for all future developments.

    In box:


    (Price is 99 euros)


    Jean-Pierre F6DZP