rtl-sdr 0.6-4 (armhf binary) in ubuntu focal

 rtl-sdr is a software defined radio (SDR) receiver software for certain
 low-cost DVB-T/DAB(+) USB dongles based on the Realtek RTL2832U chip.
 .
 This package contains a set of command line utilities:
  * rtl_adsb: a simple ADS-B decoder for RTL2832 based DVB-T receivers
  * rtl_eeprom: an EEPROM programming tool for RTL2832 based DVB-T receivers
  * rtl_fm: a narrow band FM demodulator for RTL2832 based DVB-T receivers
  * rtl_sdr: an I/Q recorder for RTL2832 based DVB-T receivers
  * rtl_tcp: an I/Q spectrum server for RTL2832 based DVB-T receivers
  * rtl_test: a benchmark tool for RTL2832 based DVB-T receivers