cl_radar_rotate <true|false>
If true, the radar rotates with your view so the direction you are facing is always at the top. If false, the radar stays in a fixed orientation and your icon turns instead.
Examples
cl_radar_rotate true - The radar rotates with your view (default).
cl_radar_rotate false - The radar stays fixed; your icon turns to show which way you're facing.
true and false can also be written as 1 and 0.