FR700019A - Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie - Google Patents

Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie

Info

Publication number
FR700019A
FR700019A FR700019DA FR700019A FR 700019 A FR700019 A FR 700019A FR 700019D A FR700019D A FR 700019DA FR 700019 A FR700019 A FR 700019A
Authority
FR
France
Prior art keywords
extinctions
finding
obtaining good
obtaining
good
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
English (en)
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 FR700019A publication Critical patent/FR700019A/fr
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
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Support Of Aerials (AREA)
FR700019D 1929-11-15 1929-11-15 Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie Expired FR700019A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR546843X 1929-11-15

Publications (1)

Publication Number Publication Date
FR700019A true FR700019A (fr) 1931-02-23

Family

ID=8933794

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700019D Expired FR700019A (fr) 1929-11-15 1929-11-15 Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie

Country Status (3)

Country Link
DE (1) DE546843C (pm)
FR (1) FR700019A (pm)
NL (1) NL32160C (pm)

Also Published As

Publication number Publication date
NL32160C (pm)
DE546843C (de) 1932-03-17

Similar Documents

Publication Publication Date Title
FR698774A (fr) Dispositif d'alarme
FR685005A (fr) Dispositif d'accord pour postes récepteurs
FR700019A (fr) Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie
FR692659A (fr) Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie
FR687649A (fr) Dispositif d'arrêt pour montres
FR689677A (fr) Dispositif pour la production d'ozone
FR695147A (fr) Dispositif pour projeter de l'encaustique liquide
FR676095A (fr) Dispositif d'arrosage pour voies publiques
FR673550A (fr) Dispositif d'attelage
FR690598A (fr) Dispositif d'essuie-glace
FR668588A (fr) Dispositif de guidon articulé pour bicyclettes de tous genres
FR699062A (fr) Dispositif pour la production d'ozone
FR714295A (fr) Dispositif pour l'obtention d'ondulations indéfrisables
FR686735A (fr) Dispositif pour l'emboîtage d'ampoules
FR682352A (fr) Dispositif pour la récupération de l'humidité atmosphérique
FR624167A (fr) Dispositif d'arrosage sous forme de pluie
FR700371A (fr) Dispositif pour mesurer l'allongement
FR702861A (fr) Dispositif pour l'obtention de l'effet stéréoscopique
FR723616A (fr) Dispositif de jonction pour bielles d'accouplement
FR707152A (fr) Dispositif d'évacuation pour centrifugeuses
FR701043A (fr) Dispositif d'avancement
FR587027A (fr) Dispositif pour l'obtention de projections cinématographiques en relief
FR694072A (fr) Dispositif pour la présentation d'images
FR654928A (fr) Dispositif d'orientation pour grue
FR698324A (fr) Dispositif d'attache pour skis