LANDSEC family of software-defined radios

Reutech Communications of South Africa developed the LANDSEC family of fast frequency hopping, digitally encrypted, software-defined radios (SDRs) for the South African military. The radios were developed from earlier systems created under Project Radiate, an effort to increase South Africa's network-enabled capabilities.

The radios all conform to Reutech's proprietary architecture, instead of the U.S.-backed software-communications architecture that is favored in most U.S. and...