Jan132024HackRF One R9 V1.9.1+Upgraded PortaPack H2 Mayhem firmware V1.9.1 with Antenna admin hackrf Upgrades of HackRF One R9 – HackRF One is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Hackrf One Specifications It is not compatible with the earlier HackRF Jawbreaker design.