FR842961A - Improvements to direction finding systems without night effect - Google Patents

Improvements to direction finding systems without night effect

Info

Publication number
FR842961A
FR842961A FR842961DA FR842961A FR 842961 A FR842961 A FR 842961A FR 842961D A FR842961D A FR 842961DA FR 842961 A FR842961 A FR 842961A
Authority
FR
France
Prior art keywords
direction finding
finding systems
night effect
night
effect
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR842961A publication Critical patent/FR842961A/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
    • G01S3/04—Details
    • G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR842961D 1937-09-08 1938-09-05 Improvements to direction finding systems without night effect Expired FR842961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE208370X 1937-09-08

Publications (1)

Publication Number Publication Date
FR842961A true FR842961A (en) 1939-06-22

Family

ID=5794196

Family Applications (1)

Application Number Title Priority Date Filing Date
FR842961D Expired FR842961A (en) 1937-09-08 1938-09-05 Improvements to direction finding systems without night effect

Country Status (4)

Country Link
CH (1) CH208370A (en)
FR (1) FR842961A (en)
GB (1) GB507461A (en)
NL (1) NL54225C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422107A (en) * 1942-07-01 1947-06-10 Rca Corp Radio direction finder
GB1060704A (en) * 1965-03-02 1967-03-08 Marconi Co Ltd Improvements in or relating to radio direction finders

Also Published As

Publication number Publication date
NL54225C (en)
CH208370A (en) 1940-01-31
GB507461A (en) 1939-06-15

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