GB273754A - Improvements in or relating to radio direction finding, range finding, and similar observations - Google Patents

Improvements in or relating to radio direction finding, range finding, and similar observations

Info

Publication number
GB273754A
GB273754A GB17575/27A GB1757527A GB273754A GB 273754 A GB273754 A GB 273754A GB 17575/27 A GB17575/27 A GB 17575/27A GB 1757527 A GB1757527 A GB 1757527A GB 273754 A GB273754 A GB 273754A
Authority
GB
United Kingdom
Prior art keywords
aerial
finding
relating
line
primary
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
GB17575/27A
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.)
Ondes Dirigees SA Des
Original Assignee
Ondes Dirigees SA Des
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 Ondes Dirigees SA Des filed Critical Ondes Dirigees SA Des
Publication of GB273754A publication Critical patent/GB273754A/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)
  • Radar Systems Or Details Thereof (AREA)

Abstract

273,754. Soc. Anon des Ondes DirigÚes. July 2, 1926, [Convention date]. Addition to 271,508. Bearings and distances, indicating ; directive signalling. - The method of making observations based on the creation of an interference field between a primary aerial and a second or re-radiating aerial or conductor, as described in the parent Specification, is modified by feeding the second aerial with modulating current fed over a line, the arrangement being such as to create secondary waves of the same frequency as the primary waves but having a definite phaserelation to each other under any given set of conditions. Preferably the two aerials are supplied by line from the same modulating source, with or without the interposition of phase-changing devices.
GB17575/27A 1926-05-21 1927-07-01 Improvements in or relating to radio direction finding, range finding, and similar observations Expired GB273754A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR630248T 1926-05-21
FR32706T 1926-07-02

Publications (1)

Publication Number Publication Date
GB273754A true GB273754A (en) 1928-01-05

Family

ID=26182630

Family Applications (2)

Application Number Title Priority Date Filing Date
GB13637/27A Expired GB271508A (en) 1926-05-21 1927-05-20 Improvements in or relating to radio direction finding, range finding and similar observations
GB17575/27A Expired GB273754A (en) 1926-05-21 1927-07-01 Improvements in or relating to radio direction finding, range finding, and similar observations

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB13637/27A Expired GB271508A (en) 1926-05-21 1927-05-20 Improvements in or relating to radio direction finding, range finding and similar observations

Country Status (3)

Country Link
US (1) US1919556A (en)
FR (2) FR630248A (en)
GB (2) GB271508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108680916A (en) * 2018-05-18 2018-10-19 云南电网有限责任公司电力科学研究院 The distance measuring method and system of transmission line of electricity and communication antenna on a kind of electric power tower

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL66405C (en) * 1943-10-15
GB626938A (en) * 1946-02-05 1949-07-25 Standard Telephones Cables Ltd Improvements in or relating to radio navigation systems
US2647257A (en) * 1948-01-22 1953-07-28 Sperry Corp Nonambiguous cycle matching system
US2628351A (en) * 1949-11-14 1953-02-10 Mackta Leo Low frequency simplified loran system
US2754512A (en) * 1951-06-26 1956-07-10 Davis Harry Fm long range navigation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108680916A (en) * 2018-05-18 2018-10-19 云南电网有限责任公司电力科学研究院 The distance measuring method and system of transmission line of electricity and communication antenna on a kind of electric power tower
CN108680916B (en) * 2018-05-18 2022-01-25 云南电网有限责任公司电力科学研究院 Distance measurement method and system for power transmission line and communication antenna on power iron tower

Also Published As

Publication number Publication date
FR32706E (en) 1928-02-21
GB271508A (en) 1927-12-22
FR630248A (en) 1927-11-25
US1919556A (en) 1933-07-25

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