About: Pip-squeak

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Pip-squeak was a radio navigation system used by the British Royal Air Force during the early part of World War II. Pip-squeak used an aircraft's voice radio set to periodically send out a 1 kHz tone which was picked up by ground-based high-frequency direction finding (HFDF, "huff-duff") receivers. Using three HFDF measurements, observers could determine the location of friendly aircraft using triangulation.

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rdfs:label	Pip-squeak (en)
rdfs:comment	Pip-squeak was a radio navigation system used by the British Royal Air Force during the early part of World War II. Pip-squeak used an aircraft's voice radio set to periodically send out a 1 kHz tone which was picked up by ground-based high-frequency direction finding (HFDF, "huff-duff") receivers. Using three HFDF measurements, observers could determine the location of friendly aircraft using triangulation. (en)
dcterms:subject	World War II British electronics Science and technology during World War II Battle of Britain Radar networks
Wikipage page ID	41658930 (xsd:integer)
Wikipage revision ID	1063973204 (xsd:integer)
Link from a Wikipage to another Wikipage	Royal Air Force Royal Aircraft Establishment Royal Observer Corps World War II British electronics Battle of Britain Science and technology during World War II Hugh Dowding Radar Anti-aircraft artillery Protractor Ordnance Survey National Grid RAF Biggin Hill Crystal oscillator Antenna gain London Stepper motor Suffolk Comic strip Identification friend or foe Battle of Britain Transponder AMES Type 7 Air Defence of Great Britain Dowding system Fighter aircraft Fix (position) Radar networks Acoustic mirror Chain Home Sussex High-frequency direction finding Triangulation Automatic gain control Pip, Squeak and Wilfred Ground-controlled interception RAF Fighter Command World War II Cathode-ray tube IFF Mark II Sector clock USAAF Radio navigation Radiogoniometer Regenerative receiver Secondary radar
Link from a Wikipage to an external page	https://www.youtube.com/watch%3Fv=Evg8rGrWOPs https://web.archive.org/web/20180813175025/http:/www.duxfordradiosociety.org/equiphist/pip-squeak/pip-squeak.html http://www.battleofbritain1940.net/document-14.html http://www.duxfordradiosociety.org/equiphist/pip-squeak/pip-squeak.html https://books.google.com/books%3Fid=VIuOSQAACAAJ https://books.google.com/books%3Fid=uYgsr3exvS4C https://books.google.com/books%3Fid=fX2wCwAAQBAJ&pg=PA141
sameAs	Pip-squeak Pip-squeak Pip-squeak
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Cite_web dbt:Convert dbt:Refbegin dbt:Refend dbt:Reflist dbt:Sfn dbt:Use_British_English dbt:Use_dmy_dates
has abstract	Pip-squeak was a radio navigation system used by the British Royal Air Force during the early part of World War II. Pip-squeak used an aircraft's voice radio set to periodically send out a 1 kHz tone which was picked up by ground-based high-frequency direction finding (HFDF, "huff-duff") receivers. Using three HFDF measurements, observers could determine the location of friendly aircraft using triangulation. Pip-squeak was used by fighter aircraft during the Battle of Britain as part of the Dowding system, where it provided the primary means of locating friendly forces, and indirectly providing identification friend or foe (IFF). At the time, radar systems were sited on the shore and did not provide coverage over the inland areas, so IFF systems that produced unique radar images were not always useful for directing interceptions. Pip-squeak was added to provide coverage in these areas. As more radar stations were added and over-land areas became widely covered, pip-squeak was replaced by IFF systems of increasing sophistication. Pip-squeak gets its name from a contemporary comic strip, Pip, Squeak and Wilfred. It was first implemented in the TR.9D radio. The system was also used by the USAAF, where the equipment was known as RC-96A. (en)
gold:hypernym	System
prov:wasDerivedFrom	wikipedia-en:Pip-squeak?oldid=1063973204&ns=0
page length (characters) of wiki page	16872 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Pip-squeak
is Link from a Wikipage to another Wikipage of	List of World War II electronic warfare equipment Identification friend or foe AI Mark IV radar Dowding system High-frequency direction finding Pip, Squeak and Wilfred Oboe (navigation) IFF Mark II Pipsqueak
is Wikipage redirect of	Pipsqueak
is foaf:primaryTopic of	wikipedia-en:Pip-squeak

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