This chart covers from 25.615 MHz to 28.755 MHz in seven (7) "bands". On this chart, the "D" band represents the regular 40 channel CB frequencies. Most export radios will have a knob labeled "Band" on the front and some will also have a "HI/LO" band switch. The position of these switches may vary for the regular 40 CB channels on different radio models. The majority of these exports will also have a 10 Khz switch which will allow you to get the "A" frequencies listed here.