Welcome

SDR# (read SDR Sharp) is a high performance Software Defined Radio application. It is written in C# with both object design correctness and performance in mind. The project started as a simple proof of concept program to get hands into DSP techniques and has evolved to what it is today: A fully featured SDR capable of handling samplerates from kHz level soundcards up to multi hundred MHz dedicated samplers, thanks to its multi-core architecture. The source code is disclosed for educational purposes and for reference to those who want to build their own plugins.
Do you still think C# is too slow for DSP? Give it a try and compare with some Intel’s IPP powered concurrents out there.

SDR# reading a 2MSPS file recorded using RFSPACE's SDR-IP

621 thoughts on “Welcome”

  1. Hi there
    I have tried to install SDRSHARP on windows XP to use with funcube dongle and while i open the software the application dont operate it goes out with illegal operation on sdrsharp.exe
    I didnt install ZADIG does it neccessary even on the funcube ?
    I took a working (installed ) copy from another PC and copy it to the other one and same results … the only diffrence is that there is no ZADIG installed there …. do i need to install it ? even if the receiver is Funcube ?
    Please Advice
    Thanks Forward
    Ronen – 4Z4ZQ
    http://www.ronen.org

    • No zadig etc is not needed with the Funcube. It should be as easy as install sdr# plug in Funcube and start.

      Is windows seeing the Funcube ok? Try a fresh install rather than copying the software across ? I suspect the second computer does not have have the software pre requirements , I forget what they are but it’s a run time element of something… Someone reading this will know what it is. :)

  2. For all those peole with RTL dongle issues, drivers, Zadig etc issues, if you can, pick up a Funcube Dongle , it will work out of the box with no driver or windows OS issues, great performace and range (150kHz to 260MHz and 410MHz to 2.05GHz) . Ok so there is a larger price tag to it, but plug and play vs hours of frustration and then bolting on upconvertors etc…. I saved up and ordered one .. never plugged the RTL in since ..

  3. Hi!
    Just a quick question…
    I’ve downloaded the modified dll to support direct sampling….BUT is there a way to use sdrsharp with direct sampling using RTL_TCP (that’s running an onther machine…where the dongle is located).
    Any idea?

    PS: usb dongle + direct sampling works…but i’ve my dongle on a raspberry on another room and i usually use rtl_tcp….

  4. I had a problem with the program today. I have been running version 1.0.0.1110 for a few weeks with no problems using Windows 7. The last time I ran it was a few days ago for a demo on my YouTube channel and it worked fine. Today when I started it I got a popup screen with a long list of errors. I had read that it does not like to run with some version of MS Net. I checked recent updates to Windows and sure enough there had been an update in this area. I did a restore to back when SDR# had been working and that fixed the problem. I have now turned off automatic updates to Windows and only do selective updates. Just thought I would pass this on.

    Tom (hamrad88)

  5. This project is awesome! I have been following it for a while, and finally got my USB device in the mail hoping it would work, but something isn’t quite right.

    I’m running XP, and I installed the custom driver using zadig using both the sdr-install and the specific XP zadig drivers, but when I go to run SDRSharp, it doesn’t do anything. I click stop and go, and I can’t tell a difference. None of the displays change or anything. I arbitrarily set the VFO to 93.5 MHz, and the device to RTL-SDR/USB. The specific adapter I got is the Terratec T Stick PLUS which is recognized when I hit the configure button within SDR Sharp (it has the RTL2832U and E4000 chipsets). I’ve fiddled with virtually every setting within SDR#, but don’t know where to go from here. Anybody have any ideas? Nothing I do seems to make a difference. Thanks in advance.

  6. kudos to the sdr# team, a great contribution to the radio art. but folks, i cant get a handle on how to install the software. there are a number of links that lead to other links to get documentation and are not static links (they say they head to a manual but only head to other links to get the manual) there is no simple install cookbook in one stable location to look at for first time users. the terminology is not explained for the first time user (what is zadig? where are the drivers, how do you install them, this why do i care about ADSB if i am a ham operator and what is ADSB?) what is an EXTDIO? is that the driver, i know my card had a rtl2832u / e4000 chipset but where is the exact driver and install instructions? there is no english common man explanation of how all this stuff works together and consiquently i cant seem to get all the pieces to work. is it imposible to ask for a simple windows compatible install EXE that simply installs the current release and gets it on the air. i bought a RF upconverter but i cant seem to get the dongle to play. i have used packaged SDR products that are hard to install but this setup leaves me confused. the user community would benefit from a simple cookbook that is in english and explains what to install from exactly where in what sequence and what exactly you are installing. there are lots of blog posts and weblinks but wadeing thought it and extracting the right information from the obsolete or irrelevent information would take a week of sundays. can someone point me to a failsafe cookbook that has been tested in the current file location so i can get started.

    thanks and it is a great piece of work by the community

    regards
    gerry kc8zul
    columbus ohio

    • I know your frustration. What I found is the sdrsharp install bat file works perfectly on my Vista laptop. It downloads all the files and installs them correctly. I use it again every so often to get the latest updates.
      My friend has Windows 7 and sdrsharp would not install without being in Administrator mode. But we got around that by copying the install bat file to his deskop and running it from there.
      You do have to make sure that you have all the required files that requires a lot of reading here.
      73′s

      • mine also frustrated at first place, after a lot of reading with a lot of confusion now i can manage what is sdr-rtl all about, but it took me 2 days. i m waiting for rtl and up converter from ebay. after all, i ll try to put in my blog in one piece :)

        73s

        • For those in need of more info. Gerry has posted helpful info. On yahoo groups for rtl sdr followers. He has combined a hf upconverter with his dtv dongle in a metal case. Very nice.

  7. I bought a RTL based TV tuner. It I had a hard time getting it to work on 4 Windows machines, 1 x XP and 3 x 7. I thought there may be something wrong with the device.
    I found in the end, install the sdr-install.zip, then download the ADSB# and unpack. Copy the files rtlsdr.dll, msvcr100.dll and libusb-1.0.dll into the SDR# directory. Probably don’t need to copy all these files. SDR# now works very well indeed.
    A very good software.
    Thanks to the developers.

  10. SDR# is very nice software!

    I like to keep desktop text set at at 125% for my poor old eyes to see properly. However, something goes wrong with the menus on the LH side of the window. If you close a menu and then reopen it some of the lower items do not reappear.

    Thanks

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