Posts by DH2VH

    Hello to all,

    Question: Does anybody has running the "Drift correction" properly?

    Today 2 pcs. of NooElec Nano 3 arrive and this was last idea i have what could be the problem. But no success.

    Again: I lock system to Master-beacon. Fine.

    Then i tune to CW-beacon in audio window to 1,5KHz.

    LNB LO corrects automatily according drift but the tuned signal of CW-beacon is not corrected.

    This means it drifts away from 1,5KHz in audio window.

    Who has any idea what the problem can be?


    Volker, DH2VH

    1. Unmodified LNB GM-201

    2. Yes NEWGEN.RTL2832SDR, TCXO 0,5ppm

    3. Yes warm up for 1 hour and more

    4. Yes "Drift correction" switched on

    5. Yes i see drifting in "RX ERR"

    But there is a significant drift in demodulated audio in value of drift.

    This is my problem.

    Hello Frank,

    Again i will try to explain my problem with SAT-Controller V0.2.

    SAT-Controller is locked to Master beacon.

    CW beacon signal is on the marked position "CW" in GQRX.

    SAT-Controller corrects the"LNB LO" according the drift of the LNB.

    So far everything is fine.

    But now when LNB drifts also the signal from "CW beacon" drifts also from marked position "CW".

    This means the "LNB LO" is corrected but the tuned frequency for the signal "CW beacon (10.489.548.500 Hz)" does not follow or is not corrected.

    What can be the problem and how to fix it?

    73, DH2VH

    Thats ok. Only the LNB LO frequency will be corrected. The tuned RX frequency will not be changed.

    Thank you for explanation.

    All the time i was thinking that there is a closed loop between master beacon and the lower beacon to compensate the drift.

    So i have to adjust a signal all the time manualy.

    This was not so clear for me.


    Hello Frank,

    thank you very very much for all time and work you spend on this project.

    When i saw V0.2 i download immediately.

    But "Drift-Control" in my case does not work properly.

    The software corrects the "LNB LO" by the value of drift but the tuned RX-frequency does not follow.

    This means as example if you tune to the lower beacon and the LNB drifts then the RX-frequency will not be corrected.

    May be i am thinking wrong but for this "Drift-Control" was build in or not?

    HA8NJ This function works on your Pi?

    73, Volker

    Hello everybody,

    SAT Controller SDR 0.1 was working perfect for a couple of weeks.

    But now since 3 days the RX ERR jumps and jumps.

    I made absolutly nothing on my system so I have no idea what happens.

    Does someone know what the problem can be?

    Are there any modifications be done on the master beacon?

    73, DH2VH, Volker

    Hallo SWL-Oliver,

    Ich verstehe Deine Frage nicht so ganz.

    Was hat FT-817 oder TS 790 mit dem Ganzen zu tun?

    RX wird doch über 2 RTL-Sticks gelöst.

    73 de DH2VH, Volker

    Hi Stef,

    Have a look in the install manual of the Poty.

    Not the feed from the LNB has to be placed in the focus of the dish.

    The Poty itself has to be placed in the focus.

    I hope this will help you.

    73 de Volker

    Hi Frank and all others.

    So SAT-Controller SDR 0.1 is a perfect solution for all who want to use an

    unmodified LNB.

    Thank you Frank.

    But one very important point sholud be added in a manual.

    So, it is absolutly neccesary to lock on Master by right click in Sat Controller

    and then "Lock". Tune to Master-Beacon and "ok".

    I spend couple of hours to start "Drift correction" without locking on Master-Beacon.

    I got this information from DH0SK and now.. It works perfect.

    Frank, Thanks again and i hope we all will get SDR 0.2. -)

    73 de Volker