
S-band search radars
To find submarines, Navy requested an S band search radar. Ernest Pollard was tasked with developing a shipboard SG/band set and an ASG/band version for large planes, such as Navy blimps. The SG–band radars were developed to detect submarines from 15 miles and more. The Navy later used AN/APS-2 in submarine detection.
The Type 42 was designed to be stronger and more efficient than Type 41. It could travel 40km. The Type 42 was also suited for shipboard applications. It went through many revisions. Its peak power was between three and five kW and its pulse width 10 milliseconds. It weighed around one-two tons and was first put into service in 1942. The Type 42, which was built to meet the requirements for the surface fleet, was upgraded in mid-1940s.
The invention of radars was a huge benefit to the German navy. The NVA, or Nachrichten-Versuchskommando, was located at Pelzerhaken near Lubeck. Radiomarelli in Italy built the radar. However, the documentation was destroyed by the Italian Royal Navy Command to avoid capture by the Nazis. Brandimarte was eventually captured by the Germans, and he later became a Lieutenant. Commandant, and participated in antifascist resistance.

Weather radars with X-band capabilities
The Xband weather radar, one of the most sophisticated radars, is among them. It operates at frequency of approximately 3000MHz and 10cm. These antennas are small and expensive because they require high power. They also are too big for most aircraft.
X-band radars operate at frequencies between 8 and 12 GHz, are more sensitive to small particles in the atmosphere, and can be used in the frequency range of 8-12 GHz. They are often used to observe light precipitation and cloud development. Because of their high sensitivity, they can identify small water and snow particles. Despite their limited range, weight and versatility, X-band radars are often used in military and civilian aircraft.
Today there are several types of weather radars. One of the most popular is the AN/CPS-9 X-band radar that was originally developed for the U.S. Air Force. Although it is controversial, this radar has played a significant role in demonstrating the value of radar meteorology.
Low radar for Chain Home
The Chain Home Low radar was a small radar that could detect targets from low altitudes. The radar could detect targets as far as 15 meters away. The magnetron powered it. Initially, it had a grid of six-meter-high dipoles measuring ninety centimeters across. It later changed to a slotted waveguide near its focal point. This system had an established horizon and was mainly used for early warning missions.

During World War II, the Chain Home Low radar system was used by the United States. It was based upon the Coastal Defence radars that were installed in 1939. They were used to find low-flying airplanes. In their infancy, CH stations were simpler than the successors. Each station consisted only of a transmitter receiver.