Add Yahoo as a preferred source to see more of our stories on Google. Small drones can be hard to track at night. Kevin Carter/Getty Images The recent spate of unidentified drone sightings in the U.S.

A United Nations agency for information and telecommunications will discuss the allocation of a global radio frequency for air-ground satellite communication following the failure of a painstaking ...

Keysight Technologies, Inc. has expanded its radio frequency (RF) and microwave instrument portfolio with six new analog signal generators, two vector signal generators, eight RF synthesizers, and ...

(The Conversation) – The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public ...