FR2275077A1 - Automatic gain control for micro-wave link - stabilises output under changing propagation conditions - Google Patents

Automatic gain control for micro-wave link - stabilises output under changing propagation conditions

Info

Publication number
FR2275077A1
FR2275077A1 FR7420912A FR7420912A FR2275077A1 FR 2275077 A1 FR2275077 A1 FR 2275077A1 FR 7420912 A FR7420912 A FR 7420912A FR 7420912 A FR7420912 A FR 7420912A FR 2275077 A1 FR2275077 A1 FR 2275077A1
Authority
FR
France
Prior art keywords
gain control
automatic gain
stabilises
micro
output under
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
FR7420912A
Other languages
French (fr)
Other versions
FR2275077B1 (en
Inventor
Henri Duquenne
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT 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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7420912A priority Critical patent/FR2275077A1/en
Publication of FR2275077A1 publication Critical patent/FR2275077A1/en
Application granted granted Critical
Publication of FR2275077B1 publication Critical patent/FR2275077B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Landscapes

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

Abstract

In this system, the two stations (1, 2) are linked by parabolic aerials (3, 4). Each station can consist of a number of solid state transmitters (10-12, 23-25) and a number of receivers (13-15, 20-22) whose frequencies are mutually displaced in the band of (20-60) Gigahertz. Between the receivers and transmitters of one station are automatic gain control circuits (131-151). The A.G.C. can operate either upon the supply to the transmitters or upon a motor which controls a (45db) attenuator in the aerial circuit. This overcomes changing propagation characteristics without interference to adjacent channels.
FR7420912A 1974-06-17 1974-06-17 Automatic gain control for micro-wave link - stabilises output under changing propagation conditions Granted FR2275077A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7420912A FR2275077A1 (en) 1974-06-17 1974-06-17 Automatic gain control for micro-wave link - stabilises output under changing propagation conditions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420912A FR2275077A1 (en) 1974-06-17 1974-06-17 Automatic gain control for micro-wave link - stabilises output under changing propagation conditions

Publications (2)

Publication Number Publication Date
FR2275077A1 true FR2275077A1 (en) 1976-01-09
FR2275077B1 FR2275077B1 (en) 1977-03-11

Family

ID=9140145

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420912A Granted FR2275077A1 (en) 1974-06-17 1974-06-17 Automatic gain control for micro-wave link - stabilises output under changing propagation conditions

Country Status (1)

Country Link
FR (1) FR2275077A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458954A1 (en) * 1979-06-06 1981-01-02 Thomson Csf RADIO CONNECTING STATION AND INTERCOM SYSTEM COMPRISING AT LEAST ONE SUCH STATION
EP0115139A2 (en) * 1982-12-27 1984-08-08 Western Electric Company, Incorporated Improvements in or relating to radio communication apparatus and systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458954A1 (en) * 1979-06-06 1981-01-02 Thomson Csf RADIO CONNECTING STATION AND INTERCOM SYSTEM COMPRISING AT LEAST ONE SUCH STATION
EP0021886A1 (en) * 1979-06-06 1981-01-07 Thomson-Csf Interphone system for radio connections
EP0115139A2 (en) * 1982-12-27 1984-08-08 Western Electric Company, Incorporated Improvements in or relating to radio communication apparatus and systems
EP0115139A3 (en) * 1982-12-27 1985-08-28 Western Electric Company, Incorporated Improvements in or relating to radio communication apparatus and systems

Also Published As

Publication number Publication date
FR2275077B1 (en) 1977-03-11

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Legal Events

Date Code Title Description
ST Notification of lapse