JPS5271911A - Dc-ac amplitude modulation transmitting system - Google Patents

Dc-ac amplitude modulation transmitting system

Info

Publication number
JPS5271911A
JPS5271911A JP50148196A JP14819675A JPS5271911A JP S5271911 A JPS5271911 A JP S5271911A JP 50148196 A JP50148196 A JP 50148196A JP 14819675 A JP14819675 A JP 14819675A JP S5271911 A JPS5271911 A JP S5271911A
Authority
JP
Japan
Prior art keywords
amplitude modulation
transmitting system
modulation transmitting
modulator
arrived
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
JP50148196A
Other languages
Japanese (ja)
Inventor
Hachihei Kurematsu
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 JP50148196A priority Critical patent/JPS5271911A/en
Publication of JPS5271911A publication Critical patent/JPS5271911A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To make it possible to identify and test easily the position where the trouble is caused, by setting the output level of modulator in a specified level, when the input signal of the modulator is not arrived.
JP50148196A 1975-12-11 1975-12-11 Dc-ac amplitude modulation transmitting system Pending JPS5271911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50148196A JPS5271911A (en) 1975-12-11 1975-12-11 Dc-ac amplitude modulation transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50148196A JPS5271911A (en) 1975-12-11 1975-12-11 Dc-ac amplitude modulation transmitting system

Publications (1)

Publication Number Publication Date
JPS5271911A true JPS5271911A (en) 1977-06-15

Family

ID=15447394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50148196A Pending JPS5271911A (en) 1975-12-11 1975-12-11 Dc-ac amplitude modulation transmitting system

Country Status (1)

Country Link
JP (1) JPS5271911A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01194551A (en) * 1988-01-29 1989-08-04 Nec Corp Digital micro-wave communication system
JPH04246955A (en) * 1991-01-31 1992-09-02 Nec Corp Input monitor control system for microwave transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01194551A (en) * 1988-01-29 1989-08-04 Nec Corp Digital micro-wave communication system
JPH04246955A (en) * 1991-01-31 1992-09-02 Nec Corp Input monitor control system for microwave transmitter

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