Here's a full tried-and-tested guide to the best handheld vhf radios on the market, and Sam Fortescue's tips on safe communication at sea.

In this work, a simple and efficient circuit modeling of metamaterial structures, providing a compact circuit able to describe accurately the device over a large bandwidth of operation, is proposed.

A USB-C SuperSpeed application is reproduced on custom-made printed circuit boards. The influence of the properties of discrete TVS devices and the board layout ...