FR30309E - Improvements to direction finders - Google Patents

Improvements to direction finders

Info

Publication number
FR30309E
FR30309E FR30309DA FR30309E FR 30309 E FR30309 E FR 30309E FR 30309D A FR30309D A FR 30309DA FR 30309 E FR30309 E FR 30309E
Authority
FR
France
Prior art keywords
direction finders
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
Other languages
French (fr)
Inventor
Ettore Bellini
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 filed Critical
Application granted granted Critical
Publication of FR30309E publication Critical patent/FR30309E/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
    • G01S3/085—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems by using spaced loop aerial systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR30309D 1924-11-20 1924-11-20 Improvements to direction finders Expired FR30309E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR30309T 1924-11-20

Publications (1)

Publication Number Publication Date
FR30309E true FR30309E (en) 1926-05-07

Family

ID=8668218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR30309D Expired FR30309E (en) 1924-11-20 1924-11-20 Improvements to direction finders

Country Status (1)

Country Link
FR (1) FR30309E (en)

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