In the modern world we live around our ability to communicate with one another, with businesses, and between friends and family. Communication between your family and with the other people in your network of preppers is crucial. If cell towers go down, or if we loose the grid how would you communicate? Even if the grid is only down for a week, how would you find one another? If you are protecting your bug out location and you were out on a patrol how would you communicate with those on the patrol or with those back at your base location? Prepareing to communicate is a very important prep and the more you practice now, the easier it will be in an emergency.
It is important to note that if you purchase a HAM radio you need to go through training and get all lisences and permits to opperate one.