When surveillance and doppler data are in different digital radar data message, and there is a valid surveillance data pointer in the doppler block (with zero size), elevation indexing will index the wrong message, and will not display reflectivity data.
When surveillance and doppler data are in different digital radar data message, and there is a valid surveillance data pointer in the doppler block (with zero size), elevation indexing will index the wrong message, and will not display reflectivity data.