Like most waves in the electromagnetic spectrum, radio waves tend to bounce off of various objects. This can be frustrating to anyone trying to use something like a GMRS or LoRa radio in a dense ...

Analysis of data from NASA radar aboard an airplane shows that the decades-old active landslide area on the Palos Verdes ...

“Active radar technology detects hazards (humans and objects) inside the defined danger zones and actively alerts the operator that a hazard is present. This technology also provides the ...

This is where passive radar could be a suitable alternative for avalanche monitoring. Unlike conventional active radar, passive radar is a positioning technology that does not emit electromagnetic ...

Distinctive octagonal array and six stories tall, the new radar is China’s new shield that detects missile threats well ...

Active exchange-traded funds created a big buzz in 2024. Here’s a look at what has hit the market and Morningstar analysts’ radar. We now rate more than 120 active ETFs. While active ETFs have ...