FR516295A - Boussole radiotélégraphique à lecture directe - Google Patents

Boussole radiotélégraphique à lecture directe

Info

Publication number
FR516295A
FR516295A FR516295A FR516295DA FR516295A FR 516295 A FR516295 A FR 516295A FR 516295 A FR516295 A FR 516295A FR 516295D A FR516295D A FR 516295DA FR 516295 A FR516295 A FR 516295A
Authority
FR
France
Prior art keywords
radiotelegraph
compass
direct reading
reading
direct
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
FR516295A
Other languages
English (en)
Inventor
Robert B Goldschmidt
Raymond Braillard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR516295A publication Critical patent/FR516295A/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
    • 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)
  • Measuring Magnetic Variables (AREA)
FR516295A 1919-05-21 1920-06-03 Boussole radiotélégraphique à lecture directe Expired FR516295A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE516295X 1919-05-21

Publications (1)

Publication Number Publication Date
FR516295A true FR516295A (fr) 1921-04-16

Family

ID=3871206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR516295A Expired FR516295A (fr) 1919-05-21 1920-06-03 Boussole radiotélégraphique à lecture directe

Country Status (3)

Country Link
US (1) US1717679A (fr)
FR (1) FR516295A (fr)
NL (1) NL11009C (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462916A (en) * 1944-03-25 1949-03-01 Standard Telephones Cables Ltd Phase measuring device
US7414571B2 (en) * 2002-08-19 2008-08-19 Q-Track Corporation Low frequency asset tag tracking system and method
US6963301B2 (en) * 2002-08-19 2005-11-08 G-Track Corporation System and method for near-field electromagnetic ranging
US7298314B2 (en) * 2002-08-19 2007-11-20 Q-Track Corporation Near field electromagnetic positioning system and method
US7307595B2 (en) * 2004-12-21 2007-12-11 Q-Track Corporation Near field location system and method

Also Published As

Publication number Publication date
US1717679A (en) 1929-06-18
NL11009C (fr)

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