JPS6460028A - If repeating microwave communication system - Google Patents

If repeating microwave communication system

Info

Publication number
JPS6460028A
JPS6460028A JP21525687A JP21525687A JPS6460028A JP S6460028 A JPS6460028 A JP S6460028A JP 21525687 A JP21525687 A JP 21525687A JP 21525687 A JP21525687 A JP 21525687A JP S6460028 A JPS6460028 A JP S6460028A
Authority
JP
Japan
Prior art keywords
receiver
transmitter
station
communication system
thermal noise
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
JP21525687A
Other languages
Japanese (ja)
Inventor
Hiroharu Konishi
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP21525687A priority Critical patent/JPS6460028A/en
Publication of JPS6460028A publication Critical patent/JPS6460028A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To prevent unnecessary interfering noise from leaking into a communication system not by using a pair of transmitter/receiver for an ordinary use in an IF repeater station, but using the other pair. CONSTITUTION:When the output of a transmitter 7(T4a) of an A station is interrupted, a receiver 6(R4a) of a B station amplitudes a wide band thermal noise, and transmits it to a receiver 6(R4b) of a C station. In addition, the receiver 6(R4b) of the C station is connected to a transmitter 7(T2a), and the thermal noise from the transmitter 7(T2a) detours a receiver 4(R1b) through the coupling between the different polarized waves of an antenna of the C station. However, since the frequencies of the transmitter 7(T2a) is largely different from the frequencies of a receiver 4(R1b), the thermal noise is largely attenuated by the filters of the receiver 4(R1b), the transmitter 7(T2a) and demultiplexer 5. Thus, even when a closed loop is formed by turning from a transmitter 3(T1b) around a receiver 6(R4a) in a reverse line, its effect can be ignored.
JP21525687A 1987-08-31 1987-08-31 If repeating microwave communication system Pending JPS6460028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21525687A JPS6460028A (en) 1987-08-31 1987-08-31 If repeating microwave communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21525687A JPS6460028A (en) 1987-08-31 1987-08-31 If repeating microwave communication system

Publications (1)

Publication Number Publication Date
JPS6460028A true JPS6460028A (en) 1989-03-07

Family

ID=16669302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21525687A Pending JPS6460028A (en) 1987-08-31 1987-08-31 If repeating microwave communication system

Country Status (1)

Country Link
JP (1) JPS6460028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013506320A (en) * 2009-09-24 2013-02-21 ロックスター ビーアイディーシーオー，エルピー Method for facilitating radio communication, radio signal repeater apparatus, radio communication method, and mobile station apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013506320A (en) * 2009-09-24 2013-02-21 ロックスター ビーアイディーシーオー，エルピー Method for facilitating radio communication, radio signal repeater apparatus, radio communication method, and mobile station apparatus

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