Every morning a lovely Korean Air A380 lands at Hartsfield International Airport in Atlanta, Georgia (KATL). When on final approach suddenly all arriving aircraft show up under the R27D3 radar. I have not seen this any other time except when this A380 arrives. When it lands, the arriving aircraft disappear from radar. Why is this? How does this happen and why don't the arrivals always show up? Why are things different when the A380 is on final? See the attached picture.
Your explanations are appreciated.
r27d3.jpg
Your explanations are appreciated.
r27d3.jpg