The widespread use of radio by the general public began in the early 1920s. In 1921 there were only around five radio stations broadcasting on a regular basis. In just two years there were hundreds of ...

Scientists report a 2.4GHz/915MHz wake-up receiver which consumes only 51µW power. This record low power achievement opens the door to battery-less or energy-harvesting based radios for a wide range ...

Back in 1928, Grandpa was the second person in Zirconia to purchase a battery radio. Mr. Cecil Pace, a prominent local citizen, bought the first radio that folks had ever heard — and it was the talk ...