CH227037A - Two-way amplifier in a carrier frequency overhead line system. - Google Patents

Two-way amplifier in a carrier frequency overhead line system.

Info

Publication number
CH227037A
CH227037A CH227037DA CH227037A CH 227037 A CH227037 A CH 227037A CH 227037D A CH227037D A CH 227037DA CH 227037 A CH227037 A CH 227037A
Authority
CH
Switzerland
Prior art keywords
carrier frequency
line system
overhead line
way amplifier
frequency overhead
Prior art date
Application number
Other languages
German (de)
Inventor
Fides Gesellschaft Beschraenk
Original Assignee
Fides Gmbh
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 Fides Gmbh filed Critical Fides Gmbh
Publication of CH227037A publication Critical patent/CH227037A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Amplifiers (AREA)
  • Radio Relay Systems (AREA)
CH227037D 1938-07-10 1941-12-31 Two-way amplifier in a carrier frequency overhead line system. CH227037A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES132926D DE722561C (en) 1938-07-10 1938-07-10 Amplifier for overhead lines running between remote offices
DES143413D DE738068C (en) 1938-07-10 1940-12-22 Amplifier for overhead lines running between remote offices

Publications (1)

Publication Number Publication Date
CH227037A true CH227037A (en) 1943-05-15

Family

ID=42224776

Family Applications (1)

Application Number Title Priority Date Filing Date
CH227037D CH227037A (en) 1938-07-10 1941-12-31 Two-way amplifier in a carrier frequency overhead line system.

Country Status (3)

Country Link
CH (1) CH227037A (en)
DE (2) DE722561C (en)
FR (2) FR857472A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018642A1 (en) * 1995-11-14 1997-05-22 Allen Telecom Inc. Bi-directional amplifiers and signal channels for frequency division duplex communications

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960550C (en) * 1942-02-01 1957-03-21 Siemens Ag Carrier-frequency message transmission system
US4392220A (en) * 1980-05-30 1983-07-05 Nippon Electric Co., Ltd. Modem to be coupled to a directional transmission line of an SS multiplex communication network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018642A1 (en) * 1995-11-14 1997-05-22 Allen Telecom Inc. Bi-directional amplifiers and signal channels for frequency division duplex communications

Also Published As

Publication number Publication date
DE738068C (en) 1943-08-02
FR51876E (en) 1943-05-24
DE722561C (en) 1942-07-13
FR857472A (en) 1940-09-14

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