This is source block for GnuRadio which implements QS1R Direct Sampling Receiver source block. Required GnuRadio version at least 3.7.1

Build instructions:

mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr ../
make
sudo make install

Allowed samplerates in Hz:

• 25000
• 50000
• 125000
• 250000
• 500000
• 625000
• 1250000
• 1562500
• 2500000

Actual bandwidth will be ~85% of the setted samplerate. The output format - is interleaved 32bit integer values of: QIQIQI...

If frequency is more than 60 MHz, then additional tuner is used KSH-146(148).

Here is example of graph: