Pluto + LNB clock reference

    Hello,

    I have built a new precise OCXO clock reference for QO100 according to the open source development by DJ0ABR, for the portable station in my caravan.

    It takes the clock from a 100MHz OCXO and divides it into 50 MHz for my Pluto and 25 MHz for the LNB reference.

    I have connected a GPS, but in general this is not really required since the frequency is already very stable with the OCXO only, at least after a few days of operation, after the run-in phase of the OCXO.

    Additionally I am experimenting with a mixer designed by IU8CRI to receive QO100 not only with Pluto but also with my Yeasu TRX.

    The description of the clock reference is here:

    https://projects.dj0abr.de/doku.php?id=en:sat:plutolnb



    vy73

    Hello Alfred,


    very nice.


    I have also built such a Reference Clock and Distribution Unit based on the development of Kurt DJ0ABR and it works really great.


    It simplifies the setup especially with the Pluto tremendously: the unit from Kurt, the AMSAT-DL 46dB PA, the Pluto and a modified LNB attached to a POTY-Feed in a 60cm dish and we have a perfect full duplex QO-100 setup.






    Kind regards


    Matthias


    http://www.dd1us.de