JPS5526736A - Multiplex radio repeater - Google Patents

Multiplex radio repeater

Info

Publication number
JPS5526736A
JPS5526736A JP9946578A JP9946578A JPS5526736A JP S5526736 A JPS5526736 A JP S5526736A JP 9946578 A JP9946578 A JP 9946578A JP 9946578 A JP9946578 A JP 9946578A JP S5526736 A JPS5526736 A JP S5526736A
Authority
JP
Japan
Prior art keywords
branching filter
circulators
amplifiers
filters
received
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.)
Pending
Application number
JP9946578A
Other languages
Japanese (ja)
Inventor
Takuro Oguchi
Masaji Honma
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9946578A priority Critical patent/JPS5526736A/en
Publication of JPS5526736A publication Critical patent/JPS5526736A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To make it possible to remove disturbance that tertiary and quinary distortions of several received waves affect other received waves by providing independently a branching filter circuit and pre-amplifier for two adjacent received signals each. CONSTITUTION:A received signal is led to branching filter circuits 12a to 12d according to the rotation direction of circulator 11 and filters 14a to 14d branch it into groups of signals (f1) and (f2), (f3) and (f4), (f5) and (f6), and (f7) and (f8) of adjacent frequencies through circulators 13a to 13c; and they are amplified by pre-amplifiers 15a to 15c, whose outputs are inputted to branching filter circuits 16a to 16d. Next, filters 17a to 17d remove odd-order distortions generated by amplifiers 15a to 15d and circulators 18a to 18d mix the outputs, so that the composite output will be sent to a feeder via circulator 19.
JP9946578A 1978-08-17 1978-08-17 Multiplex radio repeater Pending JPS5526736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9946578A JPS5526736A (en) 1978-08-17 1978-08-17 Multiplex radio repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9946578A JPS5526736A (en) 1978-08-17 1978-08-17 Multiplex radio repeater

Publications (1)

Publication Number Publication Date
JPS5526736A true JPS5526736A (en) 1980-02-26

Family

ID=14248052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9946578A Pending JPS5526736A (en) 1978-08-17 1978-08-17 Multiplex radio repeater

Country Status (1)

Country Link
JP (1) JPS5526736A (en)

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