JPS53107219A - Radio equipment - Google Patents

Radio equipment

Info

Publication number
JPS53107219A
JPS53107219A JP2177377A JP2177377A JPS53107219A JP S53107219 A JPS53107219 A JP S53107219A JP 2177377 A JP2177377 A JP 2177377A JP 2177377 A JP2177377 A JP 2177377A JP S53107219 A JPS53107219 A JP S53107219A
Authority
JP
Japan
Prior art keywords
radio equipment
antenna
circuit
transmissionreception
neutralize
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
JP2177377A
Other languages
Japanese (ja)
Inventor
Katsuyuki Imamura
Isao Nakazawa
Takuro Oguchi
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 JP2177377A priority Critical patent/JPS53107219A/en
Publication of JPS53107219A publication Critical patent/JPS53107219A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15564—Relay station antennae loop interference reduction
    • H04B7/15585—Relay station antennae loop interference reduction by interference cancellation

Abstract

PURPOSE:Some of outputs are branched and fed back to a composition circuit a compensating circuit to neutralize the turn-around component from the 2nd antenna to the 1st antenna, so that the interference due to transmissionreception coupling can be prevented easily.
JP2177377A 1977-03-01 1977-03-01 Radio equipment Pending JPS53107219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2177377A JPS53107219A (en) 1977-03-01 1977-03-01 Radio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2177377A JPS53107219A (en) 1977-03-01 1977-03-01 Radio equipment

Publications (1)

Publication Number Publication Date
JPS53107219A true JPS53107219A (en) 1978-09-19

Family

ID=12064382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2177377A Pending JPS53107219A (en) 1977-03-01 1977-03-01 Radio equipment

Country Status (1)

Country Link
JP (1) JPS53107219A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458952A1 (en) * 1979-06-08 1981-01-02 Plessey Handel Investment Ag AMPLITUDE MODULATION AMPLITUDE TRANSMITTER-RECEIVER OPERATING IN DUPLEX
JPS60186133A (en) * 1984-03-06 1985-09-21 Toyo Commun Equip Co Ltd Automatic repeating system
JPH02119320A (en) * 1988-10-28 1990-05-07 Nec Corp Radio transmitter-receiver
JPH04103228A (en) * 1990-08-22 1992-04-06 Mitsubishi Electric Corp Radio repeater and radio equipment
JPH0779348B2 (en) * 1983-12-30 1995-08-23 エイ・ティ・アンド・ティ・コーポレーション Stationary device and signal control method used in ring communication system and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458952A1 (en) * 1979-06-08 1981-01-02 Plessey Handel Investment Ag AMPLITUDE MODULATION AMPLITUDE TRANSMITTER-RECEIVER OPERATING IN DUPLEX
JPH0779348B2 (en) * 1983-12-30 1995-08-23 エイ・ティ・アンド・ティ・コーポレーション Stationary device and signal control method used in ring communication system and system
JPS60186133A (en) * 1984-03-06 1985-09-21 Toyo Commun Equip Co Ltd Automatic repeating system
JPH02119320A (en) * 1988-10-28 1990-05-07 Nec Corp Radio transmitter-receiver
JPH04103228A (en) * 1990-08-22 1992-04-06 Mitsubishi Electric Corp Radio repeater and radio equipment

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