Posts by DD1US

    Dear all,

    SDR-Radio is now supporting the ADALM Pluto for full-duplex operation via QO-100.

    The intermittent TXing issue has been solved.

    Simon is working on a few other issues and plans to release the new public version 3.0.9 tomorrow.

    Still the Pluto needs to be modified with respect to its frequency stability but SDR-Radio is now supporting not only the Lime-SDR but also the ADALM-Pluto for QO-100.

    Kind regards

    Matthias

    http://www.dd1us.de

    Dear all,


    thanks for the feedback.


    Achim, I measured both, in the spectrum window and with the signal history function. Presently it started to rain here and the SNR got down to 32dB.


    I am using a 1.8m mesh dish. I am sure that the efficiency at 10 GHZ
    is as good as on 2.4GHz but I do not know the exact figures yet.


    Regards


    Matthias


    http://www.dd1us.de

    Hello,


    I wonder what signal to noise ratio other stations are achieving with their setup.


    I am using SDR console and when adjusting the noise floor to -120dBm I get the CW beacon with -87dBm (measured with a bandwidth of 2.4 kHz). An SNR of 33dB seems to be pretty high also comparing this to the Goonhilly WEBSDR. I am not sure my measurement is correct so I would like to get data from other stations.


    Kind regards


    Matthias


    http://www.dd1us.de

    Hallo Marco,


    ich habe gerade nochmal mit der LimeSuite einen update durchgeführt. Ich hatte aber schon die aktuelle Version der Firmware drauf.


    Ich habe auch gerade mal mit der Version 2.0.8. probiert, die findet jetzt
    leider den Lime USB auch nicht mehr.


    SDR-Console läuft aber weiterhin einwandfrei mit dem LimeUSB.


    Gruss


    Matthias DD1US

    Hallo Marco,


    ja, es hatte mit dem gleichen LimeSDR bisher funktioniert. Er wurde immer erkannt. LimeSuite und SDR-Radio erkennen ihn auch einwandfrei (gleicher Rechner, gleicher Port).


    Ich habe vor ca. 3 Wochen die Firmware des Lime aktualisiert. Ich werde
    aber mal schauen ob es mittlerweile etwas neueres gibt.


    Ich bin derzeit nicht zu Hause und kann daher alles nur remote testen.


    Physikalisch den Port wechseln kann ich also momentan nicht.


    Gruss


    Matthias DD1US

    Hallo Marco,

    ich habe gerade die aktuelle Version 2.0.9 ausprobiert, aber die Software findet meinen LimeSDR nicht.

    Muss ich irgendwas besonderes einstellen, damit der Lime gefunden wird ?

    Viele Grüße

    Matthias

    Hi Marcel


    I think I got it almost working with the LimeSDR. However I get always buffer overrun.


    Do I need to run VLC media player when testing dvb-s gui or can I first try to get that right ?

    Switching the RX ports seems to work.

    When I leave port 0 I can see the narrowband transponder spectrum.

    Setting port 1 in the ini file I can see the wideband transponder spectrum.


    When I use a Bandwidtch of 2 MHz the buffer overrun does not happen but I guess I need 8 Mhz bandwidth for the wideband transponder.


    I have seen once a good constellation diagram for a short moment before the buffer overrun happened again and the gui crashed.


    Any ideas are appreciated.


    Kind regards


    Matthias


    http://www.dd1us.de

    Hi Flo,


    yes, I could convince Simon to implement the drift correction as I could refer to your excellent work !


    In 3.0.8 the problem with the RIT is corrected and now works fine.


    We are presently discussing some other modifications with respect to the RIT which should make it even more user friendly ...


    Thanks and regards


    Matthias


    http://www.dd1us.de