Lessons Learned the Wrong Way

摘要

EMI and RFI are not new phenomena. They are problems that have been around for years. When I was a small boy (which is longer ago than I will admit), I grew up across the street from a ham radio enthusiast named Bob Beebe, W7IGM (who has long since passed away). Bob bought me my first soldering iron, introduced me to Heathkits, and played a significant role in my becoming an electrical engineer. This was long before we had things like FCC compliance requirements, and even before my family had (or could even afford) a TV. Bob was a successful businessman and could be called an innovator; he had the first TV on the block, a powerful one-kilowatt linear amplifier for his ham rig, and a rotating beam antenna on his roof that covered more area than his roof did.