Benefiting from the state of the art technologies, HRC-611/E a multi-band Software Defined Radio (SDR) is designed and manufactured for establishing radio communication in frequency range of 30~512 MHz. Different communication capabilities, various modulation types, and wide frequency range cause to establish communication with various types of available radios in the frequency range. Due to frequency hopping capability and internal encryption unit with very complicated local ciphering algorithm, HRC-611/E provides a secure and reliable communication for the operator in battlefield. Benefitting from powerful wideband frequency hopping (30~512 MHz) and highly advanced encryption technologies, this radio is highly robust against jammers and deception. In addition, Fixed/Hopping frequency mode, Code/Plain voice and data transmission, SMS sending, Various types of analog/digital modulations, establishing selective/group/broadcast communication, Software upgrading/programming, Hailing/Plain override/Late Entry, connecting to external GPS (optional), network connection (optional), and remote controlling (optional) via the RS-485/LAN/ ISDN are the other capabilities of the HRC-611/E.