A hobby that blossomed after the sinking of the Titanic in 1912 has today become a key component of emergency communications, ...
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 transmitter powered ...
Most of the time, amateur radio or ham radio, is a hobby that lets techies from around the world connect to chat about everything from apples to zip lines. But during the last weekend in June, ham ...
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