Many people know Wi-Fi as a wireless technology that interconnects computers, handheld and mobile devices together on a home network or to the internet at large. But before all that, there was a wireless technology that existed and still does to this day. It's radio. You use it every day yourself. You listen to us! 103.5 MHz and 103.9 MHz FM, or Frequency Modulation. Today I'll tell you about another aspect of radio. Amateur Radio, better known as Ham Radio.