Testing rtl sdr USB receivers DVB T sticks - adsbfi/adsb-wiki GitHub Wiki
sudo bash -c "$(wget -q -O - https://raw.githubusercontent.com/adsbfi/adsb-scripts/main/rtl_test.sh)"
If you are having problems claiming the device, try blacklisting the kernel drivers:
echo -e 'blacklist rtl2832\nblacklist dvb_usb_rtl28xxu\nblacklist rtl8192cu\nblacklist rtl8xxxu\n' | sudo tee /etc/modprobe.d/blacklist-rtl-sdr2.conf
sudo reboot
They are only used for terrestrial digital television viewing which you are probably not interested in.