On Saturday, April 18, radio amateurs worldwide will take to the airwaves to celebrate World Amateur Radio Day 2015. It was on April 18, 1925, that the International Amateur Radio Union (IARU) was founded in Paris, with ARRL Co-Founder Hiram Percy Maxim, 1AW, as its first president. The primary purpose of World Amateur Radio Day is to highlight Amateur Radio and its benefits to countries and co…