I got my new RTL-SDR V3 and would like to use it with GNU radio and my Raspberry Pi 4. Also I need the internal Bias Tee to be active.
As far as I know I need 3 software components:
RTL-SDR source block
I had GNU radio + Source Blocks (gr-osmosdr) and + Driver (git://git.osmocom.org/rtl-sdr.git) with a RTL2832u running.
I tried to unistall the driver (sudo make uninstall in the folder) and install the speacial driver as described here: https://www.rtl-sdr.com/rtl-sdr-blog-v- ... ser-guide/
I can switch the Bias Tee on (./rtl_biast -b 1) and off (./rtl_biast -b 0) as described in the guide, but when I start a GNU radio program the Bias Tee gets deactivated.
https://github.com/rtlsdrblog/rtl-sdr-blog says I have to:
Code: Select all
sudo apt purge librtlsdr* sudo rm -rvf /usr/lib/librtlsdr* /usr/include/rtl-sdr* /usr/local/lib/librtlsdr* /usr/local/include/rtl-sdr*
I already tried "rtl_eeprom -i y" ("rtl_eeprom -b y" did not work. The program said that there is no "-b"). This activates the Bias Tee and I can't switch it off with "./rtl_biast -b 0" but it still gets deactivated with GNU radio.
I think there are 2 possible problems:
A: GNU radio activates the old driver and the RTL-SDR-Blog driver is not active anymore
B: GNU radio deactivates the Bias Tee
To solve A, I could start with a fresh Raspbian, install the RTL-SDR-Blog driver (https://github.com/rtlsdrblog/rtl-sdr-blog), GNU radio and then gr-osmosdr.
I have no idea how to solve B.