BE474943A - - Google Patents

Info

Publication number
BE474943A
BE474943A BE474943DA BE474943A BE 474943 A BE474943 A BE 474943A BE 474943D A BE474943D A BE 474943DA BE 474943 A BE474943 A BE 474943A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE474943A publication Critical patent/BE474943A/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/38—Jamming means, e.g. producing false echoes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
BE474943D 1945-10-10 BE474943A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US621577A US2471412A (en) 1945-10-10 1945-10-10 Frequency controlled direction finder

Publications (1)

Publication Number Publication Date
BE474943A true BE474943A (xx)

Family

ID=24490733

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474943D BE474943A (xx) 1945-10-10

Country Status (3)

Country Link
US (1) US2471412A (xx)
BE (1) BE474943A (xx)
ES (1) ES176252A1 (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730614A (en) * 1950-01-20 1956-01-10 Stromberg Carlson Co Automatic frequency control system
US2858422A (en) * 1953-04-17 1958-10-28 Gen Dynamics Corp Frequency responsive system having two slope-tuned amplifiers with differential control of gain
US3077601A (en) * 1958-01-30 1963-02-12 Westinghouse Electric Corp Signal selector circuit for passive detection apparatus
US3832711A (en) * 1964-04-13 1974-08-27 Raytheon Co Guidance system
FR1605252A (xx) * 1967-03-24 1973-11-02
US3680125A (en) * 1970-06-16 1972-07-25 Itt Angular modulation direction finding receiver
US4071845A (en) * 1975-03-31 1978-01-31 Raytheon Company Harbor radio navigation system
FR2723206B1 (fr) * 1984-12-26 1998-04-17 Dassault Electronique Recepteur de signaux electromagnetiques, avec identification et localisation de ces signaux

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB474771A (en) * 1935-07-13 1937-11-08 Cole E K Ltd Arrangement for automatic tuning of radio receivers or the like
GB469077A (en) * 1936-01-10 1937-07-12 James Robinson Improvements in or relating to wireless and like receivers
GB480289A (en) * 1937-03-09 1938-02-21 Cable & Wireless Ltd Improvements relating to wireless telegraph systems
NL52079C (xx) * 1937-06-11

Also Published As

Publication number Publication date
US2471412A (en) 1949-05-31
ES176252A1 (es) 1947-02-01

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