Raspberry Pi GqrxSDR with uBITX (Examples of using RTL-SDR in uBITX #4)

Raspberry Pi GqrxSDR with uBITX (Examples of using RTL-SDR in uBITX #4)

CAT Support uBITX Firmware CEC Version supports SDR connections from Version 1.07.
http://www.hamskey.com/2018/04/how-to-connect-sdr-rtl-sdr-to-ubitx-and.html

1.Install RTL-SDR Driver
sudo apt-get update


sudo apt-get install rtl-sdr



sudo reboot

test rtl-sdr driver

rtl_test -t



2.Install Gqrx SDR
Download Gqrx SDR
http://gqrx.dk/download/gqrx-sdr-for-the-raspberry-pi

wget https://github.com/csete/gqrx/releases/download/v2.11.4/gqrx-sdr-2.11.4-linux-rpi3.tar.xz

ls -al gqrx*

tar xf gqrx-sdr-2.11.4-linux-rpi3.tar.xz

cd gqrx*rpi3

cat readme.txt

sudo apt install gnuradio libvolk1-bin libusb-1.0-0 gr-iqbal

sudo apt install qt5-default libqt5svg5 libportaudio2

sudo cp udev/*.rules /etc/udev/rules.d/

3.Configuration Gqrx

the setting method is different according to the user's want.
In uBITX, various frequency control methods can be selected for SDR support.
Even if SDR Software does not support IF-Out or CAT communication, SDR can be used conveniently if uBITX's SDR frequency control setting is set.

Execute gqrx

./gqrx

Select SDR Deivce (RTL2832U)

4.Enjoy SDR with uBITX

Execute Gqrx


SDR Mode On


When switching to SDR mode, a signal is received at Gqrx.





You can use most SDR Software if you set the SDR frequency offset in uBITX Manager.

For more information on frequency control for SDR connections in uBITX, see other posts.