Honeywell IntuVue RDR-4000 Pilot's Manual page 52

IntuVue RDR-4000 Weather Radar Pilot's Guide
This figure shows a zoomed-in view of the near-range interference from
the previous figure.
In this figure, the interference is a bit more subtle, as it is mixed in with
real weather. However, a close look reveals several radial spokes. The
two most obvious ones have been circled.
Principles of Weather Radar Use 060-4492-000
48 Rev 7, February 2015