The society originated from local "hams" who provided backup communications for Wellesley during World War II. A vibrant amateur radio club has been serving Wellesley and surrounding areas since 1951.

The Alpha Three's compact, kid-friendly body measures around 9.5 by 7.75 by 7.5 inches and weighs about five pounds, making ...

Amid claims of China sabotaging Taiwan's undersea internet cables, some citizens are learning how to send and receive their own emergency communications. In Taiwan, a nonprofit civil defense group, ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath is a writer covering audio, video, and smart-home ...

Researchers have developed new pills that can communicate from the stomach. Developed by researchers at the Massachusetts Institute of Technology (MIT), the pill can report when it has been swallowed.

Abstract: Metamaterials are artificially engineered novel substances (or matter) that exhibit properties not found in nature. One of the earliest examples of a metamaterial structure is the split-ring ...

Abstract: In this paper, the performance of an underlay multiple-input multiple-output (MIMO) cognitive radio system is analytically studied. In particular, the secondary transmitter operates in a ...

The main goal of this project is to extend functionalities of ham radios with addition of a small PCB board that contains ESP32 microcontroller. custom digital modes (modulated and demodulated by the ...