Copyright© 2009 Tower Communication & Automation, Inc. “Reaching Beyond The Competition.” Renowned for their unparalleled performance, reliability and durability in even the harshest of conditions, FreeWave® spread spectrum and licensed radios remain the trusted choice of military, government, industrial and municipal customers. FGR2-IOS FGRIO-M IO-Expansion Click on the Names to see a quick overview of the radio. Click on the image to see it’s datasheet.