Software Defined Radio
Details zum Thema Software Defined Radio:
https://de.wikipedia.org/wiki/Software_Defined_Radio
GSM Standard
A cross platform Python frequency scanning GUI for USB TV dongles
https://eartoearoak.com/software/rtlsdr-scanner
GNURadio blocks and tools for receiving GSM transmissions
https://github.com/ptrkrysik/gr-gsm
LTE Standard
LTE-Cell-Scanner: scan the frequency band and find the eNodeB channels http://www.evrytania.com/lte-tools/lte-cell-scanner
GNU Radio LTE receiver:
https://github.com/kit-cel/gr-lte
