Seetakt was a shipborne radar developed in the 1930s and used by the German Navy (Kriegsmarine) during World War II. It is the first naval radar to enter service, and among the earliest radars of any sort. It provided range measurements with an accuracy on the order of , more than enough for gunnery. Its angle accuracy was not very good, but the development of lobe switching specifically for this radar provided about 1 degree accuracy, not enough to directly lay the guns, but still useful for initial plotting and aiding the optical spotters find their target.
Seetakt was a shipborne radar developed in the 1930s and used by the German Navy (Kriegsmarine) during World War II. It is the first naval radar to enter service, and among the earliest radars of any sort. It provided range measurements with an accuracy on the order of , more than enough for gunnery. Its angle accuracy was not very good, but the development of lobe switching specifically for this radar provided about 1 degree accuracy, not enough to directly lay the guns, but still useful for initial plotting and aiding the optical spotters find their target.
== Development == In Germany during the late 1920s, Hans Hollmann began working in the field of microwave frequencies, which later were used by almost all radar systems. In 1935 he published Physics and Technique of Ultrashort Waves, which was picked up by researchers around the world. At the time he had been most interested in their use for communications, but he and his partner Hans-Karl von Willisen had also worked on radar-like systems.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).