GB484590A - Improvements in radio direction finders and course indicating devices - Google Patents

Improvements in radio direction finders and course indicating devices

Info

Publication number
GB484590A
GB484590A GB30336/36A GB3033636A GB484590A GB 484590 A GB484590 A GB 484590A GB 30336/36 A GB30336/36 A GB 30336/36A GB 3033636 A GB3033636 A GB 3033636A GB 484590 A GB484590 A GB 484590A
Authority
GB
United Kingdom
Prior art keywords
currents
directional antenna
oscillator
grids
receiver
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
GB30336/36A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority claimed from GB5412/37A external-priority patent/GB490940A/en
Publication of GB484590A publication Critical patent/GB484590A/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
    • 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
    • G01S1/72—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 ultrasonic, sonic or infrasonic waves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB30336/36A 1936-11-06 1936-11-06 Improvements in radio direction finders and course indicating devices Expired GB484590A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB207367X 1936-11-06
GB5412/37A GB490940A (en) 1936-11-06 1937-02-23 Improvements in or relating to radio direction finding apparatus

Publications (1)

Publication Number Publication Date
GB484590A true GB484590A (en) 1938-05-06

Family

ID=32071221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30336/36A Expired GB484590A (en) 1936-11-06 1936-11-06 Improvements in radio direction finders and course indicating devices

Country Status (5)

Country Link
US (2) US2215781A (en:Method)
CH (2) CH207367A (en:Method)
FR (1) FR828300A (en:Method)
GB (1) GB484590A (en:Method)
NL (2) NL49017C (en:Method)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475412A (en) * 1949-07-05 Torcheux
US2415955A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2415954A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2422073A (en) * 1942-07-30 1947-06-10 Rca Corp Radio direction finder
US2419994A (en) * 1942-08-01 1947-05-06 Rca Corp Direction finding
US2476977A (en) * 1944-06-24 1949-07-26 Paul G Hansel Radio direction finder
US2666192A (en) * 1944-07-27 1954-01-12 Frederick V Hunt Apparatus for determining the direction of underwater targets
US2450014A (en) * 1944-10-28 1948-09-28 Standard Telephones Cables Ltd Electronic goniometer for radio direction finders
US2524768A (en) * 1944-12-16 1950-10-10 Standard Telephones Cables Ltd Radio direction finder
US2485642A (en) * 1945-03-05 1949-10-25 Standard Telephones Cables Ltd Electronic switching system
US2468109A (en) * 1945-03-19 1949-04-26 Standard Telephones Cables Ltd Direction finder
US2475612A (en) * 1945-06-27 1949-07-12 Paul G Hansel Direction finding system
US2494553A (en) * 1945-10-16 1950-01-17 Paul G Hansel Direction finding system
BE478008A (en:Method) * 1946-12-12
US2883663A (en) * 1955-03-11 1959-04-21 William J Kessler Means for direction finding and ranging on atmospherics
US3007162A (en) * 1957-07-23 1961-10-31 Albert C Nolte Sr Airplane instrument approach and landing system
US3099009A (en) * 1960-02-05 1963-07-23 Collins Radio Co Automatic direction finder system
US7414571B2 (en) * 2002-08-19 2008-08-19 Q-Track Corporation Low frequency asset tag tracking system and method
US7298314B2 (en) * 2002-08-19 2007-11-20 Q-Track Corporation Near field electromagnetic positioning system and method
US6963301B2 (en) * 2002-08-19 2005-11-08 G-Track Corporation System and method for near-field electromagnetic ranging
US7307595B2 (en) * 2004-12-21 2007-12-11 Q-Track Corporation Near field location system and method
CN101652942A (zh) * 2007-03-15 2010-02-17 罗盘自动跟踪器有限责任公司 用于测向仪的设备和方法
US8774837B2 (en) 2011-04-30 2014-07-08 John Anthony Wright Methods, systems and apparatuses of emergency vehicle locating and the disruption thereof

Also Published As

Publication number Publication date
NL50131C (en:Method)
FR828300A (fr) 1938-05-13
CH207367A (de) 1939-10-31
CH223333A (de) 1942-09-15
US2213273A (en) 1940-09-03
NL49017C (en:Method)
US2215781A (en) 1940-09-24

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