FR1147324A - Perfectionnements aux liaisons radioélectriques à grande distance et ultra-haute fréquence - Google Patents

Perfectionnements aux liaisons radioélectriques à grande distance et ultra-haute fréquence

Info

Publication number
FR1147324A
FR1147324A FR1147324DA FR1147324A FR 1147324 A FR1147324 A FR 1147324A FR 1147324D A FR1147324D A FR 1147324DA FR 1147324 A FR1147324 A FR 1147324A
Authority
FR
France
Prior art keywords
ultra
distance
long
high frequency
radio links
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
English (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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1147324A publication Critical patent/FR1147324A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
FR1147324D 1956-04-09 1956-04-09 Perfectionnements aux liaisons radioélectriques à grande distance et ultra-haute fréquence Expired FR1147324A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1040093X 1956-04-09

Publications (1)

Publication Number Publication Date
FR1147324A true FR1147324A (fr) 1957-11-21

Family

ID=9588719

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1147324D Expired FR1147324A (fr) 1956-04-09 1956-04-09 Perfectionnements aux liaisons radioélectriques à grande distance et ultra-haute fréquence

Country Status (3)

Country Link
US (1) US3001064A (fr)
DE (1) DE1040093B (fr)
FR (1) FR1147324A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984774A (en) * 1959-01-14 1976-10-05 The United States Of America As Represented By The Secretary Of The Navy Antijam communications system
NL130063C (fr) * 1959-07-02
US3104356A (en) * 1961-04-26 1963-09-17 Earl G Hedger Fm signal-to-noise monitoring system
US3140443A (en) * 1961-05-26 1964-07-07 Raytheon Copmany Frequency scanning receiver with clutter rejection
US3916406A (en) * 1963-02-20 1975-10-28 Us Navy Jamming cancellation device
DE1274162B (de) * 1963-02-21 1968-08-01 Asahi Shimbunsha Publishing Co Bilduebertragungseinrichtung
US3443228A (en) * 1965-11-22 1969-05-06 Gen Atronics Corp Optimum frequency communication system with different test frequencies in different test intervals
US3532988A (en) * 1969-01-23 1970-10-06 Motorola Inc Digital troposcatter multiplex communication system optimum frequency
US3676778A (en) * 1970-08-20 1972-07-11 Nippon Telegraph & Telephone Satellite communication system
US4328581A (en) * 1980-06-20 1982-05-04 Rockwell International Corporation Adaptive HF communication system
US4679048A (en) * 1985-04-25 1987-07-07 Grumman Aerospace Corporation Adaptive spread spectrum radar
US4903324A (en) * 1988-02-01 1990-02-20 Colin Electronics Co., Ltd. Ring around transceiver

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433020A (fr) * 1938-03-02
US2462069A (en) * 1942-05-07 1949-02-22 Int Standard Electric Corp Radio communication system
US2379069A (en) * 1943-07-24 1945-06-26 Bell Telephone Labor Inc Automatic line testing and switching circuits
US2435010A (en) * 1944-11-27 1948-01-27 Gen Railway Signal Co Continuously checked communication system
US2521696A (en) * 1949-01-24 1950-09-12 Armond James K De Optimum frequency radio communication system
US2773176A (en) * 1949-10-22 1956-12-04 Hartford Nat Bank & Trust Co Radio communication system
US2686256A (en) * 1951-02-06 1954-08-10 Bell Telephone Labor Inc Signal transmission system
US2694140A (en) * 1951-11-24 1954-11-09 Bell Telephone Labor Inc Selection of low interference radio channels

Also Published As

Publication number Publication date
DE1040093B (de) 1958-10-02
US3001064A (en) 1961-09-19

Similar Documents

Publication Publication Date Title
CH374394A (de) Frequenzselektive Anordnung
FR1180834A (fr) élévateur-transporteur mobile à courroie
FR1150417A (fr) Transporteur à courroie
FR70013E (fr) Rouleau convoyeur
FR1212983A (fr) Oscillateur à fréquence variable
FR1172784A (fr) Perfectionnements aux transporteurs à courroie
FR1129797A (fr) Récepteur radio à modulation de fréquence perfectionné
FR1158831A (fr) Perfectionnement aux antennes hyperfréquences
FR1159961A (fr) Perfectionnements apportés aux transporteurs à courroie rectiligne extensible
GB820717A (en) Improvements in frequency selective amplifiers
CA521569A (fr) Dispositif a frequence ultra-haute
FR1129195A (fr) Perfectionnements aux liaisons par ondes ultra-courtes et, en particulier, aux câbles hertziens
ES54708Y (es) Cinta transportadora móvil
AT197432B (de) Hochfrequenzverstärker mit Transistoren
ES55692Y (es) Radiorreceptor portátil
FR1285637A (fr) Amplificateurs à fréquences radioélectriques
FR1176030A (fr) Réseaux en pont à fréquence radio
FR1168607A (fr) Fréquencemètre
CA536230A (fr) Appareil a frequence ultra haute
ES53747Y (es) Mueble radiorreceptor transportable
CA537840A (fr) Mesurage de distance par radio employant une frequence variable
ES54194Y (es) Enchufe-conectador para amplificadores y aparatos de radiotelefonía y símilares
AT176877B (de) Verstärker, insbesondere Hoch- und Zwischenfrequenzverstärker
FR1164816A (fr) Récepteur radiophonique
FR1211494A (fr) Quadripole à transistors variable en fréquence