Our speaker for the evening was Mark Benoit from InterMet Systems here in Grand Rapids. They make radiosondes and other atmospheric sensing equipment. While the National Weather Service uses Vaisala and Lockheed Martin radiosondes, they do use InterMet receiving antennas. InterMet systems are currently being used in over 50 countries worldwide to monitor weather and climate.
To see the entire presentation move your mouse over the image below and click on the arrow at the top right corner to "pop-out" the pdf.