GB392210A - Improvements in or relating to short wave radio communication systems - Google Patents

Improvements in or relating to short wave radio communication systems

Info

Publication number
GB392210A
GB392210A GB30721/31A GB3072131A GB392210A GB 392210 A GB392210 A GB 392210A GB 30721/31 A GB30721/31 A GB 30721/31A GB 3072131 A GB3072131 A GB 3072131A GB 392210 A GB392210 A GB 392210A
Authority
GB
United Kingdom
Prior art keywords
valves
aerial
lecher
valve
grids
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
GB30721/31A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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
Priority to BE392118D priority Critical patent/BE392118A/xx
Priority to FR745147D priority patent/FR745147A/fr
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB30721/31A priority patent/GB392210A/en
Priority to GB12535/33A priority patent/GB403674A/en
Priority to DE1932M0121350 priority patent/DE686680C/de
Priority to US639462A priority patent/US2064481A/en
Publication of GB392210A publication Critical patent/GB392210A/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
    • H01J25/68—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Toys (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
GB30721/31A 1931-11-05 1931-11-05 Improvements in or relating to short wave radio communication systems Expired GB392210A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE392118D BE392118A (ja) 1931-11-05
FR745147D FR745147A (ja) 1931-11-05
GB30721/31A GB392210A (en) 1931-11-05 1931-11-05 Improvements in or relating to short wave radio communication systems
GB12535/33A GB403674A (en) 1931-11-05 1932-06-27 Improvements in or relating to two-way telephone systems
DE1932M0121350 DE686680C (de) 1931-11-05 1932-10-11 Sende- bzw. Empfangsanordnung fuer Ultrakurzwellen
US639462A US2064481A (en) 1931-11-05 1932-10-25 Short wave radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30721/31A GB392210A (en) 1931-11-05 1931-11-05 Improvements in or relating to short wave radio communication systems

Publications (1)

Publication Number Publication Date
GB392210A true GB392210A (en) 1933-05-05

Family

ID=10312099

Family Applications (2)

Application Number Title Priority Date Filing Date
GB30721/31A Expired GB392210A (en) 1931-11-05 1931-11-05 Improvements in or relating to short wave radio communication systems
GB12535/33A Expired GB403674A (en) 1931-11-05 1932-06-27 Improvements in or relating to two-way telephone systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB12535/33A Expired GB403674A (en) 1931-11-05 1932-06-27 Improvements in or relating to two-way telephone systems

Country Status (5)

Country Link
US (1) US2064481A (ja)
BE (1) BE392118A (ja)
DE (1) DE686680C (ja)
FR (1) FR745147A (ja)
GB (2) GB392210A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485559A (en) * 1945-04-12 1949-10-25 Farnsworth Res Corp Ultra high frequency amplifier system
JP4909798B2 (ja) * 2007-04-27 2012-04-04 株式会社日立製作所 スケルトン等化アンテナ、同アンテナを用いたｒｆｉｄタグおよびｒｆｉｄシステム

Also Published As

Publication number Publication date
FR745147A (ja) 1933-05-05
BE392118A (ja)
GB403674A (en) 1933-12-27
DE686680C (de) 1940-01-18
US2064481A (en) 1936-12-15

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