JPS6448528A - Fm interference wave compensation system - Google Patents

Fm interference wave compensation system

Info

Publication number
JPS6448528A
JPS6448528A JP20460587A JP20460587A JPS6448528A JP S6448528 A JPS6448528 A JP S6448528A JP 20460587 A JP20460587 A JP 20460587A JP 20460587 A JP20460587 A JP 20460587A JP S6448528 A JPS6448528 A JP S6448528A
Authority
JP
Japan
Prior art keywords
reception
receiver
level
wave
transmitter
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
JP20460587A
Other languages
Japanese (ja)
Inventor
Junichi Hasegawa
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 JP20460587A priority Critical patent/JPS6448528A/en
Publication of JPS6448528A publication Critical patent/JPS6448528A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve the transmission quality of a digital radio line and to reduce the operation cost by adopting the titled system such that a reception level is detected at the reception side, a control signal is sent to the sender side by a return line, the transmission output of an opposite transmitter is controlled so as to bring the reception level to be a level capable of reproducing the FM carrier. CONSTITUTION:A reception level detector (Det) 14 of a reception side 10 detects a reception level of a receiver (RX) 11 to send a control signal C to a sender side 20 by using a transmitter 15 and a receiver 23 through a return line. The control signal C received by the receiver 23 activates the transmission power controller (Con) 24 at the sender side 20 to control the transmission power of the transmitter (TX) 21 of the main signal. The reception input level of the receiver (RX) 11 already reaches a level corresponding to the D/U ratio at which an FM carrier reproduction section (FMIC) 12 can reproduce the FM wave by the control loop. Thus, even when the reception input level lin the receiver (RX) 11 is fluctuated due to fading or the like, the FM carrier reproduction section (FMIC) 12 reproduces the FM wave at all times to suppress the FM interruption wave thereby solving the problem.
JP20460587A 1987-08-18 1987-08-18 Fm interference wave compensation system Pending JPS6448528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20460587A JPS6448528A (en) 1987-08-18 1987-08-18 Fm interference wave compensation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20460587A JPS6448528A (en) 1987-08-18 1987-08-18 Fm interference wave compensation system

Publications (1)

Publication Number Publication Date
JPS6448528A true JPS6448528A (en) 1989-02-23

Family

ID=16493227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20460587A Pending JPS6448528A (en) 1987-08-18 1987-08-18 Fm interference wave compensation system

Country Status (1)

Country Link
JP (1) JPS6448528A (en)

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