JPS53148311A - Modulation and demodulation system of auxiliary line in direct repeating radio unit - Google Patents

Modulation and demodulation system of auxiliary line in direct repeating radio unit

Info

Publication number
JPS53148311A
JPS53148311A JP6370977A JP6370977A JPS53148311A JP S53148311 A JPS53148311 A JP S53148311A JP 6370977 A JP6370977 A JP 6370977A JP 6370977 A JP6370977 A JP 6370977A JP S53148311 A JPS53148311 A JP S53148311A
Authority
JP
Japan
Prior art keywords
auxiliary line
modulation
radio unit
demodulation system
repeating radio
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
JP6370977A
Other languages
Japanese (ja)
Inventor
Takuro Oguchi
Katsuyuki Imamura
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 JP6370977A priority Critical patent/JPS53148311A/en
Publication of JPS53148311A publication Critical patent/JPS53148311A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To emable to form the auxiliary line with a simple constitution, by applying an input signal such as audio to an AGC opreration circuit.
JP6370977A 1977-05-31 1977-05-31 Modulation and demodulation system of auxiliary line in direct repeating radio unit Pending JPS53148311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6370977A JPS53148311A (en) 1977-05-31 1977-05-31 Modulation and demodulation system of auxiliary line in direct repeating radio unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6370977A JPS53148311A (en) 1977-05-31 1977-05-31 Modulation and demodulation system of auxiliary line in direct repeating radio unit

Publications (1)

Publication Number Publication Date
JPS53148311A true JPS53148311A (en) 1978-12-23

Family

ID=13237164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6370977A Pending JPS53148311A (en) 1977-05-31 1977-05-31 Modulation and demodulation system of auxiliary line in direct repeating radio unit

Country Status (1)

Country Link
JP (1) JPS53148311A (en)

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