What are the hollow blue circles titled RAN-2 / RAN-3 on my ABRIS?

[Halcyon]

I've tried looking in the manual and Chuck's guide, but I can't find a reference to these types of symbols on the moving map. Anyone know?

[fudabidu]

Those are known enemy locations. Blue = enemy, Red = friendly (because Russia = red)

If a group is set to visible in the ME it will show up on the ABRIS. Only the first unit in each group will be shown!
The text next to it is the group's name (set in ME), but shortened.

This information is ONLY updated when you enter the cockpit.

[Halcyon]

Great, thanks.

[Baaz]

To be a little more specific, the blue circles represent surface-to-air units.  The blue shaded area is indicating the engagement area those units can see.  This shaded area will change as you change elevation and terrain mask.  If you see yourself moving into the blue shaded area, it's time for you to take serious note of your surroundings, as bad shit is about to happen soon if you don't

[Halcyon]

17 hours ago, Baaz said:

To be a little more specific, the blue circles represent surface-to-air units.  The blue shaded area is indicating the engagement area those units can see.  This shaded area will change as you change elevation and terrain mask.  If you see yourself moving into the blue shaded area, it's time for you to take serious note of your surroundings, as bad shit is about to happen soon if you don't

 

Super useful, thanks!