Radio waves

World Radio Day: How heroic amateur radio operators use radio waves to conduct post-disaster rescue operations | The Weather Channel – Articles de The Weather Channel

An amateur radio operator. (Aditya Waikul / TOI, BCCL, Pune) Picture this: You’ve just encountered an intense cyclone, a storm so strong it damaged buildings, uprooted trees, knocked down utility poles and power lines, and destroyed everything in its path. The electricity is already cut and all your usual modes of communication – cell phones, […]

Radio waves

Quantum receiver capable of detecting the full spectrum of radio waves

A quantum sensor has been developed that can analyze the full spectrum of radio frequencies, which could open up new options for military communication. US Army researchers built the quantum sensor, which can sample from zero frequency up to 20 GHz, detecting AM and FM radio, Bluetooth, Wi-Fi and other communication signals along the way. […]