The Type 281 radar was a British naval early-warning radar developed during World War II. It replaced the Type 79 as the Royal Navy's main early-warning radar during the war. The prototype system was mounted on the light cruiser HMS Dido in October 1940. This radar used a frequency of 90 MHz, a beamwidth of 35°, and a wavelength of 3.5 m (3.8 yd). It required separate transmitting and receiving antennas that were rotated by hand. For long-range warning the radar used a 15 microsecond pulse at a power level of 350 kW that gave a detection range up to 110 nautical miles (200 km; 130 mi) for aircraft. For tracking surface targets it used a 2–3 microsecond pulse at 1 MW that gave a range up to 12 nautical miles (22 km; 14 mi). A second set was installed in January 1941 aboard the battleship HM
Attributes | Values |
---|---|
rdf:type | |
rdfs:label |
|
rdfs:comment |
|
name |
|
foaf:depiction | |
dcterms:subject | |
Wikipage page ID |
|
Wikipage revision ID |
|
Link from a Wikipage to another Wikipage | |
Link from a Wikipage to an external page | |
sameAs | |
dbp:wikiPageUsesTemplate | |
thumbnail | |
country |
|
frequency |
|
number |
|
power |
|
type | |
has abstract |
|
beamwidth |
|
introdate |
|
PRF |
|
pulsewidth |
|
gold:hypernym | |
prov:wasDerivedFrom | |
page length (characters) of wiki page |
|
foaf:isPrimaryTopicOf | |
is Link from a Wikipage to another Wikipage of |
|