CH248846A - Direction-finding device in which two identical, directional antenna systems set up at an angle are used. - Google Patents

Direction-finding device in which two identical, directional antenna systems set up at an angle are used.

Info

Publication number
CH248846A
CH248846A CH248846DA CH248846A CH 248846 A CH248846 A CH 248846A CH 248846D A CH248846D A CH 248846DA CH 248846 A CH248846 A CH 248846A
Authority
CH
Switzerland
Prior art keywords
angle
directional antenna
antenna systems
finding device
systems set
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH248846A publication Critical patent/CH248846A/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
    • 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
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
CH248846D 1944-02-26 1945-12-22 Direction-finding device in which two identical, directional antenna systems set up at an angle are used. CH248846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL248846X 1944-02-26

Publications (1)

Publication Number Publication Date
CH248846A true CH248846A (en) 1947-05-31

Family

ID=19780970

Family Applications (1)

Application Number Title Priority Date Filing Date
CH248846D CH248846A (en) 1944-02-26 1945-12-22 Direction-finding device in which two identical, directional antenna systems set up at an angle are used.

Country Status (4)

Country Link
BE (1) BE462410A (en)
CH (1) CH248846A (en)
FR (1) FR926621A (en)
GB (1) GB636199A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019720B (en) * 1956-01-30 1957-11-21 Plath G M B H Nautisch Elektro Arrangement for the automatic adjustment of a dual-channel radio direction finder
DE971912C (en) * 1954-04-14 1959-04-16 Telefunken Gmbh Two-channel direction finder with comparison indicator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO131561C (en) * 1971-05-07 1975-06-18 Standard Tel Kabelfab As

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971912C (en) * 1954-04-14 1959-04-16 Telefunken Gmbh Two-channel direction finder with comparison indicator
DE1019720B (en) * 1956-01-30 1957-11-21 Plath G M B H Nautisch Elektro Arrangement for the automatic adjustment of a dual-channel radio direction finder

Also Published As

Publication number Publication date
GB636199A (en) 1950-04-26
FR926621A (en) 1947-10-07
BE462410A (en)

Similar Documents

Publication Publication Date Title
CH265990A (en) Radio reception system.
FR944385A (en) Radio-electric identification systems
FR1011635A (en) Directional antennas
FR947320A (en) Directional effect antenna
ES172379A1 (en) IMPROVEMENTS IN RECEIVING SYSTEMS
CH248846A (en) Direction-finding device in which two identical, directional antenna systems set up at an angle are used.
CH253777A (en) Annular, resilient safety element on two machine parts that are nested into one another.
CH248979A (en) Transmit-receive circuit.
Gaster Two Notes on Nahum
FR902039A (en) Improvements in direction-finding and, in particular, long-range direction-finding processes
FR903973A (en) Plastics, lacquers, etc.
CH238877A (en) Grain point.
CH234145A (en) Orientation compass.
CH247571A (en) Antenna system with at least two parallel dipoles.
CA410646A (en) Directional aerial array
AU118984B2 (en) Improvements m elevated directional aerials or aerial systems
AU121071B2 (en) Improvements in directional aerial systems
AU125705B2 (en) Improvements in directional aerial systems
ES10823Y (en) Resistance block for radiotelephony devices.
DK80558C (en) Surveillance signal systems, in particular for use in telegraph systems.
FR890875A (en) Antenna for radiotelegraphy, radiotelephony, etc.
CH273117A (en) Direction-finding installation.
CA412455A (en) Directional antenna system
AU1590344A (en) Improvements in directional aerial systems
AU1077243A (en) Improvements in directional aerial systems