GB526055A - Improvements in course indicators for radio direction systems - Google Patents

Improvements in course indicators for radio direction systems

Info

Publication number
GB526055A
GB526055A GB7410/39A GB741039A GB526055A GB 526055 A GB526055 A GB 526055A GB 7410/39 A GB7410/39 A GB 7410/39A GB 741039 A GB741039 A GB 741039A GB 526055 A GB526055 A GB 526055A
Authority
GB
United Kingdom
Prior art keywords
coil
currents
signal
fed
frequencies
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
GB7410/39A
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
Priority to NL59195D priority Critical patent/NL59195C/xx
Priority to BE478022D priority patent/BE478022A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB7410/39A priority patent/GB526055A/en
Priority to FR863522D priority patent/FR863522A/fr
Publication of GB526055A publication Critical patent/GB526055A/en
Priority to US724317A priority patent/US2553558A/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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
GB7410/39A 1939-03-07 1939-03-07 Improvements in course indicators for radio direction systems Expired GB526055A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL59195D NL59195C (en:Method) 1939-03-07
BE478022D BE478022A (en:Method) 1939-03-07
GB7410/39A GB526055A (en) 1939-03-07 1939-03-07 Improvements in course indicators for radio direction systems
FR863522D FR863522A (fr) 1939-03-07 1940-02-22 Dispositifs pour augmenter le rapport des intensités de deux courants de fréquences différentes
US724317A US2553558A (en) 1939-03-07 1947-01-25 Course indicator for radio direction systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7410/39A GB526055A (en) 1939-03-07 1939-03-07 Improvements in course indicators for radio direction systems

Publications (1)

Publication Number Publication Date
GB526055A true GB526055A (en) 1940-09-10

Family

ID=9832592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7410/39A Expired GB526055A (en) 1939-03-07 1939-03-07 Improvements in course indicators for radio direction systems

Country Status (5)

Country Link
US (1) US2553558A (en:Method)
BE (1) BE478022A (en:Method)
FR (1) FR863522A (en:Method)
GB (1) GB526055A (en:Method)
NL (1) NL59195C (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL59195C (en:Method) * 1939-03-07
US2793363A (en) * 1953-03-30 1957-05-21 Rca Corp Instrument landing system receiver apparatus
US3020478A (en) * 1957-07-12 1962-02-06 Itt Phase measuring device
US3032715A (en) * 1959-01-02 1962-05-01 Collins Radio Co Means for measuring rate of change of frequency
US3257510A (en) * 1962-10-15 1966-06-21 Industrial Res Prod Inc Feedback control apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1923920A (en) * 1931-07-06 1933-08-22 Us Government Course shift-indicator for the double-modulation type radiobeacons
NL59195C (en:Method) * 1939-03-07

Also Published As

Publication number Publication date
FR863522A (fr) 1941-04-03
BE478022A (en:Method)
NL59195C (en:Method)
US2553558A (en) 1951-05-22

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