GB553618A - Improvements in or relating to wireless direction finders - Google Patents

Improvements in or relating to wireless direction finders

Info

Publication number
GB553618A
GB553618A GB206642A GB206642A GB553618A GB 553618 A GB553618 A GB 553618A GB 206642 A GB206642 A GB 206642A GB 206642 A GB206642 A GB 206642A GB 553618 A GB553618 A GB 553618A
Authority
GB
United Kingdom
Prior art keywords
receivers
switch
relating
philips
finders
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB206642A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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.)
Filing date
Publication date
Priority to FR875404D priority Critical patent/FR875404A/en
Priority to BE442426D priority patent/BE442426A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB206642A priority patent/GB553618A/en
Publication of GB553618A publication Critical patent/GB553618A/en
Priority to US666248A priority patent/US2485353A/en
Expired legal-status Critical Current

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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Rehabilitation Tools (AREA)

Abstract

553,618. Direction-finders. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Feb. 16, 1942, No. 2066. [Class 40 (v)] In a direction-finder in which two directional antenna systems 1, 2, at right angles to each other, are connected through separate receivers 3, 4 to an indicator, such as a cathode-ray tube 5, 6, the input circuits may be connected in parallel by means of a switch 7 so that the phase-displacement and amplification factor of at least one of the receivers can be adjusted, e.g. by means of device 9. The switch 7 may be controlled by the knee or foot of the operator. Where superheterodyne receivers are used, simultaneous control of the amplification of both receivers may be effected by varying a coupling condenser in the intermediate-frequency bandpass filters.
GB206642A 1940-08-10 1942-02-16 Improvements in or relating to wireless direction finders Expired GB553618A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR875404D FR875404A (en) 1940-08-10 1941-08-08 Goniometric device comprising two identical directed antenna systems, arranged perpendicular to each other
BE442426D BE442426A (en) 1940-08-10 1941-08-09
GB206642A GB553618A (en) 1942-02-16 1942-02-16 Improvements in or relating to wireless direction finders
US666248A US2485353A (en) 1940-08-10 1946-05-01 Radio direction finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB206642A GB553618A (en) 1942-02-16 1942-02-16 Improvements in or relating to wireless direction finders

Publications (1)

Publication Number Publication Date
GB553618A true GB553618A (en) 1943-05-28

Family

ID=9732989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB206642A Expired GB553618A (en) 1940-08-10 1942-02-16 Improvements in or relating to wireless direction finders

Country Status (1)

Country Link
GB (1) GB553618A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473491A (en) * 1944-02-26 1949-06-14 Hartford Nat Bank & Trust Co Direction finding device
US2485353A (en) * 1940-08-10 1949-10-18 Hartford Nat Bank & Trust Co Radio direction finder
US2510692A (en) * 1945-06-25 1950-06-06 Rca Corp Direction finding system
US2512832A (en) * 1948-01-12 1950-06-27 Board Transient signal direction finder
US2527547A (en) * 1941-02-10 1950-10-31 Int Standard Electric Corp Self-contained radio guiding apparatus for mobile craft
US3005199A (en) * 1956-10-18 1961-10-17 Alsacienne Constr Meca Radio-electric measurement of the angular position

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485353A (en) * 1940-08-10 1949-10-18 Hartford Nat Bank & Trust Co Radio direction finder
US2527547A (en) * 1941-02-10 1950-10-31 Int Standard Electric Corp Self-contained radio guiding apparatus for mobile craft
US2473491A (en) * 1944-02-26 1949-06-14 Hartford Nat Bank & Trust Co Direction finding device
US2510692A (en) * 1945-06-25 1950-06-06 Rca Corp Direction finding system
US2512832A (en) * 1948-01-12 1950-06-27 Board Transient signal direction finder
US3005199A (en) * 1956-10-18 1961-10-17 Alsacienne Constr Meca Radio-electric measurement of the angular position

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