Unusual radio technologies

Weather balloons, also known as radiosondes, are one of the most exciting targets for SDR (Software Defined Radio) hobbyists. These automated weather measurement devices are launched hundreds of times daily worldwide, collecting atmospheric data and transmitting it via radio signals to ground stations. With SDR technology, it’s possible to decode these signals at home with…

Radio frequency jamming is one of the most serious threats to modern radio technology and communication systems. Although jamming was already known during World War I, in the age of digital and adaptive systems it has taken on entirely new dimensions. This article provides a detailed overview of the concept of jamming, its operating principles,…