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Unfamiliar word? Select a dotted-underlined term for its meaning.
Read colour as a source clue
White track information can come from airborne radar through Link-11. Ground-radar tracks normally appear green. This describes the contribution to the picture, not whether an aircraft is friendly or hostile.
Check the airborne contribution
Find the E-3D by its E identity and aircraft details. Right-click its track and check L11: ON. RINGS controls the range guide, not the sensor. Use the full setup steps if it is off. If the right-click menu does not open, use the L11 control in AC Control instead; those steps also explain how to enable the menu.
Keep reading the other information
Read the identity letter and available data alongside colour. Selection and alerts can also change what is highlighted. A white contact with a hostile identity is not made friendly by its colour.
If the white contact is visible but missing from FLT PLNS, use the flight-plan list checks. The map and list do not always contain the same contacts.
For missing position symbols or white plots after selecting another aircraft, use the selection and reporting checks. A change to those visuals is not automatically a loss of radar reports.