FR700525A - Method and devices for marine beaconing in foggy weather - Google Patents

Method and devices for marine beaconing in foggy weather

Info

Publication number
FR700525A
FR700525A FR700525DA FR700525A FR 700525 A FR700525 A FR 700525A FR 700525D A FR700525D A FR 700525DA FR 700525 A FR700525 A FR 700525A
Authority
FR
France
Prior art keywords
beaconing
marine
devices
foggy weather
foggy
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
French (fr)
Inventor
Alphonse Lopin
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 FR700525A publication Critical patent/FR700525A/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
    • G01S1/72—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 ultrasonic, sonic or infrasonic 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)
FR700525D 1929-11-27 1929-11-27 Method and devices for marine beaconing in foggy weather Expired FR700525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700525T 1929-11-27

Publications (1)

Publication Number Publication Date
FR700525A true FR700525A (en) 1931-03-02

Family

ID=9050629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700525D Expired FR700525A (en) 1929-11-27 1929-11-27 Method and devices for marine beaconing in foggy weather

Country Status (1)

Country Link
FR (1) FR700525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541627A (en) * 1945-05-24 1951-02-13 Williams Frederic Calland Wireless signaling system
US2855594A (en) * 1941-03-05 1958-10-07 Int Standard Electric Corp Radio detection and distance indicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855594A (en) * 1941-03-05 1958-10-07 Int Standard Electric Corp Radio detection and distance indicator
US2541627A (en) * 1945-05-24 1951-02-13 Williams Frederic Calland Wireless signaling system

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