GB652653A - Improvements in multiplex ultra-short wave radio relay communication systems - Google Patents

Improvements in multiplex ultra-short wave radio relay communication systems

Info

Publication number
GB652653A
GB652653A GB8693/48A GB869348A GB652653A GB 652653 A GB652653 A GB 652653A GB 8693/48 A GB8693/48 A GB 8693/48A GB 869348 A GB869348 A GB 869348A GB 652653 A GB652653 A GB 652653A
Authority
GB
United Kingdom
Prior art keywords
short wave
multiplex
radio
ultra
radio relay
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
GB8693/48A
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Publication of GB652653A publication Critical patent/GB652653A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

652,653. Radio signalling. SOC. FRANCAISE RADIO-ELECTRIQUE. March 24, 1948, No. 8693. Convention date, April 18, 1947. Drawings to Specification. [Class 40 (v)] In an ultra short wave multiplex radio relay system the relay stations comprise wide-band low gain amplifiers, such as travelling wave tubes, with input and output connected to directional receiving and re-radiating aerials or horns, relatively oriented at an angle of a little less than 180 degrees to avoid interference, no change of frequency taking place. The stations are relatively close together, with low power input and output, e.g. 10<SP>-7</SP> and 10<SP>-3</SP> watt. The communication path may follow power transmission pylons. Frequency modulation may be used.
GB8693/48A 1947-04-18 1948-03-24 Improvements in multiplex ultra-short wave radio relay communication systems Expired GB652653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR945844T 1947-04-18

Publications (1)

Publication Number Publication Date
GB652653A true GB652653A (en) 1951-04-25

Family

ID=9472578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8693/48A Expired GB652653A (en) 1947-04-18 1948-03-24 Improvements in multiplex ultra-short wave radio relay communication systems

Country Status (3)

Country Link
CH (1) CH270413A (en)
FR (1) FR945844A (en)
GB (1) GB652653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039089A (en) * 1958-01-27 1962-06-12 Temco Electronics & Missiles C Radar system
CN110518954A (en) * 2019-09-26 2019-11-29 西安烽火电子科技有限责任公司 A kind of shortwave/ultrashort wave radio set remote distance relay communication system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE520379A (en) * 1952-06-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039089A (en) * 1958-01-27 1962-06-12 Temco Electronics & Missiles C Radar system
CN110518954A (en) * 2019-09-26 2019-11-29 西安烽火电子科技有限责任公司 A kind of shortwave/ultrashort wave radio set remote distance relay communication system and method
CN110518954B (en) * 2019-09-26 2022-05-03 西安烽火电子科技有限责任公司 Short wave/ultra-short wave radio station long-distance relay communication system and method

Also Published As

Publication number Publication date
FR945844A (en) 1949-05-16
CH270413A (en) 1950-08-31

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