Here is a video of my visit last weekend to the Massachusetts QRP Convention, a meeting of ham radio enthusiasts who use low power. QRP operators are the makers of the ham world. Since they work with such low power, many QRP operators make and modify their equipment to get the perfect performance. Every little bit counts.
Michael Rainey (AA1JT) does a great job making a lot out of a little. In addition to his radio receiver powered by radio waves in the video above, he also made a radio powered by voice, the New England Code Talker. Here’s a video of Michael operating his voice-powered transmitter by shouting Morse code.