I need some help in understanding here. Why echo? What is the purpose of it? Even in my CB days I never liked it. The only time I liked it was my radio days when I was spinning disc's at a 10,000 watt oldies AM station in Joliet IL. It gave show the 50's feel, anyway I am not trying to start a flame war here but almost every DX radio has echo? I can understand the roger beep but not echo. So I ask the question..... why?