Discussion in 'OS: Mac OS' started by KD4KO, Jul 8, 2018.

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  1. KD4KO

    KD4KO Ham Member QRZ Page

    I just received my RTL-SDR from China. I installed Cubic 0.2.3 and want to monitor the 20 meter USB Ham bands.
    I wonder if someone could jump start this 84 year old Ham, using Cubic on my iMac?
    David E Fahnestock
  2. G0GSR

    G0GSR Ham Member QRZ Page

    David, my RTL dongle will not work below 24MHz. Its basically a VHF/UHF device.
    Not sure about yours but these things are all pretty similar.
    Sorry but never used anything Mac.

  3. WV8A

    WV8A Ham Member QRZ Page

    CubicSDR is now at v 0.2.4.

    Current version at: (you'd want "CubicSDR-0.2.4-Darwin.dmg" from the list.

    Release notes at

    User manual at:

    The user manual provides far better information than I could to "jump start" you.
    Depending on what flavor RTL-SDR module you have, you may or may not need an up-converter to receive HF signals like the 20 meter or any ham band through 6 meters. I have the NooElec NESDR, which natively will receive 25-1750MHz, with a NooElec Ham It Up up converter in order to copy signals .1MHz (100kHz) - 60MHz. When using the up-converter, all SDR software provides setting an offset frequency (-125MHz for the NESDR/HamItUp) to allow correct frequency readout of the up-converted signal.

    FYI other SDR software to evaluate are Gqrx, SDRdx and SDR Radio
    Good info on software and hardware combos at


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