A marine radar antenna on the mast of a boat moored on the River Seine in Paris, France. In use, the antenna rotates as it transmits radar pulses and

---

A marine radar antenna on the mast of a boat moored on the River Seine in Paris, France. In use, the antenna rotates as it transmits radar pulses and receives reflected pulses to map out the local area. The signals are processed for viewing on an internal screen in a rotating view that matches the scan pattern of the external antenna.

---

Size: 5128px × 3408px
Photo credit: © MARK WILLIAMSON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: antenna, boat, france, french, map, marine, mast, paris, pulse, pulses, radar, receive, reflected, reflection, river, rotates, rotating, scan, sea-, seine, ship, signal, transmit