Radio History

Look at any ham tower and you will know it instantly: the long boom, the row of elements getting shorter toward the front. The Yagi-Uda antenna turns 100 in 2026, and it remains the most recognizable antenna on Earth — the rooftop TV antenna of the 1960s, the contest station's beam, the direction-finder's pointer. A century after its invention, we still have not found a better way to aim radio waves.

It began with a beep from a box of tin and wire. On December 12, 1961, barely four years after Sputnik, a group of California hams called Project OSCAR lofted the first amateur satellite, a battery-powered box that keyed "HI" in Morse on two meters until its batteries faded. That launch proved ordinary radio amateurs could put hardware in space, but a loose coastal club was no way to run a space program.

In 1947, the ham bands belonged to AM: big, warm signals sprawling across six kilohertz, from transmitters that glowed like space heaters and weighed as much as refrigerators. Then a strange new sound appeared — quacking, Donald Duck gibberish on the frequencies where experimenters were testing a mode that threw away the carrier and one entire sideband. Single sideband sounded awful on an ordinary AM receiver, but it carried a whisper around the world on a fraction of the power — and within two decades, with a little help from a speck of germanium, it would remake the ham shack.

Four years after Sputnik 1, a group of California amateurs decided the space age should not belong to governments alone. In December 1961, they put their own satellite in orbit — and it worked.

The moon is a terrible reflector of radio waves. It absorbs most of what hits it, returns only a whisper, and keeps moving the whole time. Amateurs have been bouncing signals off it for more than 70 years anyway.

Ask most GMRS users where their service came from and you will get a shrug. But the General Mobile Radio Service is one of the oldest radio services the FCC ever created — older than CB, older than FRS, and nearly as old as amateur radio licensing itself.

In April of 1917, as the United States entered the First World War, every amateur radio operator in the country received the same grim letter from the Department of Commerce: get off the air and dismantle your antennas. More than six thousand hams, at the height of the spark era, fell silent almost overnight. The American Radio Relay League, formally organized that very year, suddenly had nothing to relay — so it did the next most useful thing it could think of: it recruited its members into the nation's communications services.

One night in April 1914, Hiram Percy Maxim sat down at his one-kilowatt station in Hartford, Connecticut — call sign 1WH, one of the best-equipped amateur stations in New England — and tried to send a message to a fellow ham in Springfield, Massachusetts, just 30 miles away. Nothing came back. He called again. Still nothing. Then he remembered a ham he knew in Windsor Locks, roughly halfway between the two cities, and asked him to carry the message the rest of the way.

Long before a modern ham station, with its whisper-quiet transistors and waterfall displays, there was thunder. The earliest radio transmitters worked by discharging a capacitor across a spark gap, and every dot and dash went out into the air riding a crackling bolt of artificial lightning. That violent, beautiful noise was the heartbeat of amateur radio's first era, and it began with a young Italian experimenter who believed he could make electricity speak without wires.