FR2348607A1 - Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator - Google Patents

Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator

Info

Publication number
FR2348607A1
FR2348607A1 FR7611295A FR7611295A FR2348607A1 FR 2348607 A1 FR2348607 A1 FR 2348607A1 FR 7611295 A FR7611295 A FR 7611295A FR 7611295 A FR7611295 A FR 7611295A FR 2348607 A1 FR2348607 A1 FR 2348607A1
Authority
FR
France
Prior art keywords
oscillator
radio beacon
self
transmission frequency
providing precise
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
FR7611295A
Other languages
French (fr)
Other versions
FR2348607B1 (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 FR7611295A priority Critical patent/FR2348607A1/en
Publication of FR2348607A1 publication Critical patent/FR2348607A1/en
Application granted granted Critical
Publication of FR2348607B1 publication Critical patent/FR2348607B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • 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
    • G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
    • G01S1/685—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information using pulse modulation, e.g. pulse frequency modulation

Abstract

A radio beacon has a blocked oscillator comprising a quartz resonator (1) determining the transmissions frequency of the beacon with high degree of precision. A transistor (2) is the active element in which the basemitter junctions constitutes the blocking junction. A polarization resistance (3) fixes the average charge rate of a capacitor (4) charged by the oscillators detected by transistor (2). Resistance (5) limits the capacitor charge and determines the peaks emitted. An oscillator (6) determines the mode of the resonator (1) and an energy source (8) powers the unit.
FR7611295A 1976-04-16 1976-04-16 Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator Granted FR2348607A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7611295A FR2348607A1 (en) 1976-04-16 1976-04-16 Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7611295A FR2348607A1 (en) 1976-04-16 1976-04-16 Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator

Publications (2)

Publication Number Publication Date
FR2348607A1 true FR2348607A1 (en) 1977-11-10
FR2348607B1 FR2348607B1 (en) 1978-09-01

Family

ID=9171934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7611295A Granted FR2348607A1 (en) 1976-04-16 1976-04-16 Self-contained radio beacon - has quartz oscillator providing precise transmission frequency for pulsed oscillator

Country Status (1)

Country Link
FR (1) FR2348607A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516724A1 (en) * 1981-11-19 1983-05-20 Elphora RADIO SIGNAL TRAIN GENERATOR AND PORTABLE TRANSMITTER COMPRISING SUCH A GENERATOR
FR2611959A1 (en) * 1987-02-24 1988-09-09 Courier De Mere Henri Wireless remote transmitter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2425444A1 (en) * 1974-05-25 1975-12-04 Anton Dipl Ing Richtscheid Transmitter for persons buried by an avalanche - low power supply activated by sweat

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2425444A1 (en) * 1974-05-25 1975-12-04 Anton Dipl Ing Richtscheid Transmitter for persons buried by an avalanche - low power supply activated by sweat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516724A1 (en) * 1981-11-19 1983-05-20 Elphora RADIO SIGNAL TRAIN GENERATOR AND PORTABLE TRANSMITTER COMPRISING SUCH A GENERATOR
FR2611959A1 (en) * 1987-02-24 1988-09-09 Courier De Mere Henri Wireless remote transmitter

Also Published As

Publication number Publication date
FR2348607B1 (en) 1978-09-01

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Legal Events

Date Code Title Description
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ST Notification of lapse
ST Notification of lapse