Consider this: It is now four decades ago that astronaut Owen Garriott, callsign W5LFL, pioneered amateur radio communication from space. He was a crewmember on the space shuttle program's STS-9 ...

Many of us tried the old “Two tin cans connected by a string” experiment as kids. [Michael Rainey, AA1TJ] never quite forgot it. Back in 2009, he built “El Silbo”, a ham radio ...