By now you should note a couple of things:

Go to the "Map Settings" menu and uncheck "Air Weapons". The red circle disappears. You will note that you can turn on or off any one of the range circles. These are for you to use as you need or wish, feel free to experiment with whatever helps you with your battle. The Sensor ranges won't appear unless you turn your radars on ("F9", unit menu or sensor button on the right). You don't have sonar on an F-16 so I wouldn't sweat that one.