GB476289A - Improvements in direct reading radiogoniometers - Google Patents

Improvements in direct reading radiogoniometers

Info

Publication number
GB476289A
GB476289A GB17763/37A GB1776337A GB476289A GB 476289 A GB476289 A GB 476289A GB 17763/37 A GB17763/37 A GB 17763/37A GB 1776337 A GB1776337 A GB 1776337A GB 476289 A GB476289 A GB 476289A
Authority
GB
United Kingdom
Prior art keywords
coil
pick
lamp
transmission
june
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
GB17763/37A
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.)
ETS HENRY LEPAUTE
Original Assignee
ETS HENRY LEPAUTE
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 ETS HENRY LEPAUTE filed Critical ETS HENRY LEPAUTE
Publication of GB476289A publication Critical patent/GB476289A/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
    • 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)
  • Near-Field Transmission Systems (AREA)

Abstract

476,289. Wireless directive signalling. PARISIER, M., and SOC. DES ETABLISSEMENTS HENRY - LEPAUTE. June 25, 1937, No. 17763. Convention date, June 26, 1936. [Class 40 (v)] To prevent interruptions or strong modulations in a transmission from giving false signals on a radiogoniometer, two pick-ups, mounted at an angle to each other, are rotated together, the second pick-up affecting the indicating instrument only when the signal transmission is interrupted. As shown, the search. coil C1 is rotated and the rotating lamp N is arranged to flash when no e.m.f. is induced in coil C1. The rotating frame C2, which is mounted at an angle to Cl, is connected to give a negative potential difference in valve T when no current is induced in the coil. Consequently during normal operation pick-up C2 has no effect on the system and the flashing of lamp N indicates the direction of the transmitter. If however the transmission is interrupted, the two coils affect valve T at the same time and act in opposition so that no current flows in the indicating circuit and a false signal is not given by lamp N.
GB17763/37A 1936-06-26 1937-06-25 Improvements in direct reading radiogoniometers Expired GB476289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR819503T 1936-06-26

Publications (1)

Publication Number Publication Date
GB476289A true GB476289A (en) 1937-12-06

Family

ID=9269427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17763/37A Expired GB476289A (en) 1936-06-26 1937-06-25 Improvements in direct reading radiogoniometers

Country Status (2)

Country Link
FR (1) FR819503A (en)
GB (1) GB476289A (en)

Also Published As

Publication number Publication date
FR819503A (en) 1937-10-20

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