Posts by PA1RW

  • problems with Pluto Sdr

    An other way of checking the output of the Pluto is transmitting on a low(er)

    frequency and see if you can receive this signal on a suitable receiver.


    73, Dolf PA1RW

  • LNB-Umbau

    An other important parameter for the oscillator is the phase noise.

    This has to be very low.

    In what way is the receiving signal deteriorated?


    73, Dolf. PA1RW

  • Update SDR Console

    What is the best way to update SDR Console?.

    I am running now version 3.0.16, would like to upgrade to the newest version.

    Is it simple installing the new version over the old one, or is it necessary to delete the old version

    including registry and other files?


    73,

    Dolf. PA1RW

  • QO100 setup help

    Hello,


    I use the same buck converter. Receiving NB with a Pluto-sdr i discovered

    some QRM, wich was eliminated using a ferrite toroid in the 28V lines.


    73,

    Dolf. PA1RW

  • QO100 setup help

    Hello S21AT (from Bangladesh?),


    What I use is an amplifier from OPA-DESIGN (F1OPA) between the Pluto and the

    SG-Labs amplifier. This amplifier has a build-in 2.4GHz saw filter.


    A bias-t you can build yourself like I did. There are several designs to find on the

    internet.


    The buck-converter I use gave some QRM on the receiving signals.

    The QRM disappeard using a ferrite core in the power lines to the SG-Labs amplifier.


    Best 73,

    Dolf. PA1RW

  • QO100 setup help

    Hello S21AT,


    If you would also transmit on QO-100 (probably yes because you mentioned a SG-Lab

    amplifier) then you need an antenna like a POTY, a helix or a WIFI antenna.


    73,

    Dolf

  • QO100 setup help

    Hello S21AT,


    You need also a dish (prime focus or offset), a lnb (modified or bulls eye),

    cables, bias-t, perhaps a 740MHz filter (saw) and probably more.