While it may have required a large amount of expensive equipment in the past, like most ham radio operations the advent of software-defined radio (SDR) has helped revolutionize this aspect of the ...

For Christmas, [Lior] received a Baofeng UV5R radio. He didn’t have an amateur radio license, so he decided to use it as a police scanner. Since the schematics were available, he cracked it ...

But, what about a better communications system? When we think open source, our mind naturally turns to software, usually *NIX-based, running on Linux. What most people tend not to think about is the ...