Manual Installation of SDR#

Manual Installation of the RTL-SDR drivers with SDR# for the RTL-SDR

1) Download the RTL-SDR Drivers, and extract the rtlsdr.dll file from the x32 folder into the SDR# folder:

2) Download zadig from their website and place it into the SDR# folder:

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  1. Jeff

    THANK YOU! Wasted 3 days fiddling about until Ii ifound this site. It was the rtlsdr.dll file I needed.
    Now works like a charm!


  2. Anonymous

    Very difficult to configure the SW and the users guide seems to encourage installation of extraneous, not needed SW rather than give simple installation, configuration instructions. The media player does not work, and why do I need someone else’s anyway? Frustrated but not totally stupid. Ready to return this; thankfully it was gift and I did not pay for it.

  3. Chris

    Hello its dont work on Airspy SDR# (SDRSharp) x86 revision 1769 96aaa72b (2020-10-20) with the dongle and WIN7 64 bit the rtlsdr.dll is not customized for it. The scriptfile from Airspy rtlsdr.dll crash the airspy software,with the 64bit file ( rtlsdr.dll) from osmocom it started but i can not selected any dongle i hear nothing zadig was installed on hdsdr with the ExtIO_RTL2832.dll it works well. Its definitely the DLL File i hope your team can write a working DLL file best regards Chris Win 7 64

    • De Dauw Herman

      I don’t think you should expect another version of ExtIO_RTL2832.dll for Win7. Win7 has been obsolete for quite some time now, causing problems with different versions of RTL-SDR programs. I have successfully updated all computers (> 5) to Win10 for some time now. You can still do the update for free (it is somewhat hidden), if you have a valid Win7 system. I have also found several ExtIO_RTL2832.dll versions (especially mod versions) that work with HDSDR and SDR #. I myself no longer use SDR #, although it has many possibilities, it does not give me quality reception. For that, HDSDR or SDR console is a much better choice. I would not choose the RTL-SDR V3 dongle (anymore) because it puts the tuner offside for HF reception, and uses direct sampling on the AD chip, which is insufficient to get good reception on HF, and is a very good antenna. required. The even better method to get good HF reception is to use an HF Up converter before the SDR. I have made 5 versions, and they work very well on my regular dongles.
      For the better work, and for about the same price as an expensive dongle, I have an RSP-1 or an MSI panorama stick. It has a reception range of 10Khz to 1.7GHz, and there is no need for direct sampling or an UP HF converter. The sensitivity and bandwidth are also a lot better. Grts, on1bes

  4. on1bes

    I found a solution that works for me after the update from Windows 10 to ver2004. I also had the problem that HDSDR would no longer start with the old EXtIO_2832.dll. It has nothing to do with Zadig. The latest Zadig 2.4 installs without any problem to add the RTL driver to the USB devices. But the last EXtIO_2832 no longer works in Windows 10. I looked for other DLL drivers, and found one that works with the modified divers for the HF Mod in HDSDR. I am now using the ExtIO_RTLSDR_u8.dll, and it works perfectly until now.

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