r820tweak is a modified RTL-SDR driver that exposes the R820T2 device gain stages and filters and makes them accessible through a GUI app.

You just need to launch your SDR program (e.g gqrx) like this:

r820tweak gqrx and it will automatically preload the modified driver

Then you need to run

r820tweak

which will launch the GUI app that manages RTLSDR settings

Why?

Because it takes eons to get the new features in the gnuradio source and then the software that uses it.

Installation

python, wxpython, libusb-dev and a gcc compiler are neeeded to build the project, e.g:

sudo apt-get install gcc libusb-dev gcc sudo pip install wxpython

Building the program is as easy as running make:

make && sudo make install

Milen Rangelov

GNU GPL