Santa Net is an annual December event where licensed amateur radio operators use RF and EchoLink technology to connect children with Santa Claus on the airwaves.

About 170 Starshield satellites built by SpaceX for the US government’s National Reconnaissance Office (NRO) have been ...

Abstract: Passive radar (PR) systems present a discreet method for detecting objects by utilizing existing radio frequency (RF) signals in the surrounding environment. However, effectively isolating ...

Abstract: As a crucial step for routing establishment in multi-hop mobile ad hoc networks (MANETs), topology discovery (TD) is extremely challenging when directional antennas are used. In this paper, ...

张老师的名声在上海本地的ham圈可以说是如雷贯耳，以阴阳怪气，难为新人出名。 张老师令人咋舌的金句频出。 张老师好于挤兑他人来获得心灵上的满足。 在本次事件中的言论，称所有的ham都是事业无成、孩子不理、老婆无话、闲的无事，才玩无线电的；且 ...

Thanks to all who wrote in to our Paul McLane after reading his love letter to radio towers, titled “I Love the Sticks." ...

A team of physicists at the University of Warsaw has built the world’s first all-optical radio receiver powered entirely by laser light. The device, developed by researchers from the Faculty of ...

Find out the average market price range for this vehicle. # This number is operated by CarsGuide. You will be redirected to the seller, who will be provided with your number.