CH221971A - DF device with rotating directional antenna. - Google Patents

DF device with rotating directional antenna.

Info

Publication number
CH221971A
CH221971A CH221971DA CH221971A CH 221971 A CH221971 A CH 221971A CH 221971D A CH221971D A CH 221971DA CH 221971 A CH221971 A CH 221971A
Authority
CH
Switzerland
Prior art keywords
directional antenna
rotating directional
rotating
antenna
directional
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer D Telefunken
Original Assignee
Telefunken Gmbh
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 Gmbh filed Critical Telefunken Gmbh
Publication of CH221971A publication Critical patent/CH221971A/en

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)
CH221971D 1940-10-21 1941-10-11 DF device with rotating directional antenna. CH221971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE221971X 1940-10-21

Publications (1)

Publication Number Publication Date
CH221971A true CH221971A (en) 1942-06-30

Family

ID=5842893

Family Applications (1)

Application Number Title Priority Date Filing Date
CH221971D CH221971A (en) 1940-10-21 1941-10-11 DF device with rotating directional antenna.

Country Status (2)

Country Link
CH (1) CH221971A (en)
FR (1) FR878315A (en)

Also Published As

Publication number Publication date
FR878315A (en) 1943-01-18

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