The project was based on a PIC16F877A microcontroller for the basic purpose of encouraging radio amateurs to build their own SWR meter at a very cheap price compared to high-priced ready made. Two ...

Trail communication is key, whether your spotter is telling you where to put your tires or when you are trying to reach base camp to tell them you are upside-down. That is why we require a Citizens ...

SWR or standing wave ratio is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum), in an electrical transmission line. The SWR ...