Shortwave listening: What it is, how to do it and what to buy

摘要

Listening to the radio has got to be one of the oldest electronic past times there is. Not long after the first radios were put into operation in the early 1900s, there were enthusiasts who put together their own radios from junk parts just to hear what was on and to experience the thrill of tuning in a station from far away ... without wires. Once the vacuum tube came along, radio really took off and stations sprung up around the world. Even with a simple radio, you could hear local and far away stations. Today, there are still many of us who like to do this. The activity is shortwave listening (SWL) and it is both fun and a challenge.