FR2451588A1 - Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal - Google Patents

Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal

Info

Publication number
FR2451588A1
FR2451588A1 FR7906442A FR7906442A FR2451588A1 FR 2451588 A1 FR2451588 A1 FR 2451588A1 FR 7906442 A FR7906442 A FR 7906442A FR 7906442 A FR7906442 A FR 7906442A FR 2451588 A1 FR2451588 A1 FR 2451588A1
Authority
FR
France
Prior art keywords
signal
goniometer
laying
beacon signal
indicating presence
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.)
Granted
Application number
FR7906442A
Other languages
French (fr)
Other versions
FR2451588B1 (en
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
Priority to FR7906442A priority Critical patent/FR2451588A1/en
Publication of FR2451588A1 publication Critical patent/FR2451588A1/en
Application granted granted Critical
Publication of FR2451588B1 publication Critical patent/FR2451588B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

The direction of a fixed or mobile body or a radio beacon is determined from a radiogoniometer. An amplifier driving coloured LED's indicates whether the signal is strong or weak and a flat area allows the user to write the information during short transmission periods. A plastic casing (2) comprising two shells houses a magnetic compass with a sighting element (6) through which the bearing is A fixed index (7) passes through the compass pivot axis and is to a ferrite antenna. An FET increases the selectivity of the antenna and after detection the signal is amplified and applied to a two colour LED to indicate when the signal is present and when it falls below a threshold level.
FR7906442A 1979-03-14 1979-03-14 Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal Granted FR2451588A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7906442A FR2451588A1 (en) 1979-03-14 1979-03-14 Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7906442A FR2451588A1 (en) 1979-03-14 1979-03-14 Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal

Publications (2)

Publication Number Publication Date
FR2451588A1 true FR2451588A1 (en) 1980-10-10
FR2451588B1 FR2451588B1 (en) 1984-03-16

Family

ID=9223094

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906442A Granted FR2451588A1 (en) 1979-03-14 1979-03-14 Laying of nautical navigation bearing - uses radio-goniometer with coloured LED indicating presence of beacon signal

Country Status (1)

Country Link
FR (1) FR2451588A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024640A (en) * 1963-11-21 1966-03-30 Donald Charles Alfred Crowhurs Improvements in radio direction finding instruments
US3469262A (en) * 1967-11-28 1969-09-23 Electronic Enterprises Inc Radio direction finder
US3683384A (en) * 1969-07-22 1972-08-08 Vec Trak Research & Dev Corp Radio direction finder
US4003060A (en) * 1975-02-26 1977-01-11 The United States Of America As Represented By The Federal Communications Commission Direction finding receiver
FR2325302A7 (en) * 1975-09-16 1977-04-15 Danze Jean Maritime or river radio navigation aid - uses radio receiver to detect signals by obstacles with galvanometer to measure intensity and compass to determine bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024640A (en) * 1963-11-21 1966-03-30 Donald Charles Alfred Crowhurs Improvements in radio direction finding instruments
US3469262A (en) * 1967-11-28 1969-09-23 Electronic Enterprises Inc Radio direction finder
US3683384A (en) * 1969-07-22 1972-08-08 Vec Trak Research & Dev Corp Radio direction finder
US4003060A (en) * 1975-02-26 1977-01-11 The United States Of America As Represented By The Federal Communications Commission Direction finding receiver
FR2325302A7 (en) * 1975-09-16 1977-04-15 Danze Jean Maritime or river radio navigation aid - uses radio receiver to detect signals by obstacles with galvanometer to measure intensity and compass to determine bearing

Also Published As

Publication number Publication date
FR2451588B1 (en) 1984-03-16

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse