RICHLAND, WA- A local high school science teacher launched a solar powered radio transmitter, which is called a sky tracker, 45,000 feet in the air and it made it's way around the world in 11 days.

The PTM 33x, a radio transmitter module family, enables the implementation of wireless sensors and switches without batteries. The module family have three frequency variants – PTM 33x, PTM 33xC, and ...

On July 22, 2025, Radio World republished one of my articles from October 25, 2011. The title was, “Rebuild That Relic of an AM Transmitter.” The idea of the article is to keep an old tube-type AM ...

FILE: Despite weather conditions, some people took advantage of the big waves in Galveston. The National Weather Service will install a temporary weather radio transmitter in Galveston at the end of ...