Sultan-papagani / sdrpp_rtlsdr_source

a newer rtl-sdr source for sdr++ with old-dab/rtlsdr

sdrpp_rtlsdr_source

New rtl-sdr source for sdr++ which implements better controls for r820t2/r828d tuners.

Features

• Filter Controls
• Software & Hardware Tuner AGC
• Basic & Manual Controls
• Mixer, Lna, DAGC(Rtl Gain), Total Gain Readings
• Agc Clock Setting for faster/slower AGC
• Tuner IF Frequency shifting

Needed Hardware

• rtl-sdr with a r820/r820t2/r828d tuner
• RTL-SDR Blog V4 and V3 supported

Installing

Windows

Download prebuilt .dll files from Release

• put "librtlsdr.dll" and "libwinpthread-1.dll" in the same folder as sdrpp.exe
• Put "new_rtlsdr_source.dll" into "modules" folder
• Launch sdrpp.exe and add the new module from "Module Manager"
• Go to "Source" and select "NEW-RTL-SDR"

SDR++ Server installation

• put "librtlsdr.dll" and "libwinpthread-1.dll" in the same folder as sdrpp.exe
• Put "sdrpp server\new_rtlsdr_source.dll" into "modules" folder (not the folder itself, only the .dll)
• Launch sdrpp.exe and add the new module from "Module Manager"
• Go to "Source" and select "NEW-RTL-SDR"

Other

There are currently no existing packages for other distributions

Building on Windows

1. Compile old-dab fork:

   https://github.com/Sultan-papagani/rtlsdr-olddab
   

   rename librtlsdr.dll.a to librtlsdr.lib
   and librtlsdr_static.a to librtlsdr_static.lib
   (i used mingw on windows)
   

2. Add the "new_rtlsdr_source" folder to "SDRPlusPlus/source_modules"

3. On new_rtlsdr_source\CMakeLists.txt change the cmake paths to wherever you put the old-dab library

4. on SDRPlusPlus\CMakeLists.txt add

   option(OPT_BUILD_NEW_RTL_SDR_SOURCE "Build RTL-SDR Source Module (Dependencies: librtlsdr)" ON)
   

   if (OPT_BUILD_NEW_RTL_SDR_SOURCE)
   add_subdirectory("source_modules/new_rtlsdr_source")
   endif (OPT_BUILD_NEW_RTL_SDR_SOURCE)
   

5. Build sdr++ with:

   cmake --build . --config Releas
   

6. On SDRPlusPlus\root_dev\config.json add this line to modules:[];

   "./build/source_modules/new_rtlsdr_source/Release/new_rtlsdr_source.dll",
   

7. Launch sdr++ from the top directory

  .\build\Release\sdrpp.exe -r root_dev -c

Windows development notice

If you open the project on vscode probably all the lines will be red because vscode cant find the rtlsdr files but it compiles fine.

Building on Other distributions

* Build https://github.com/Sultan-papagani/rtlsdr-olddab
* on "new_rtlsdr_source\CMakeLists.txt" set cmake paths wherever you put the old-dab and compile
* on SDRPlusPlus\CMakeLists.txt add the same lines as windows
* Compile sdr++
* on root_dev dont forget to add the source to modules[] just like windows

About Code

There is bunch of commented code, you can uncomment it and explore rtl-sdr's settings even further, here is the some of the options:

Used libraries

• old-dab/rtlsdr

Special Thanks to

• Erlend / LB6MI