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JPS57116433A - Radio transmitter - Google Patents

Radio transmitter

Info

Publication number
JPS57116433A
JPS57116433A JP56002401A JP240181A JPS57116433A JP S57116433 A JPS57116433 A JP S57116433A JP 56002401 A JP56002401 A JP 56002401A JP 240181 A JP240181 A JP 240181A JP S57116433 A JPS57116433 A JP S57116433A
Authority
JP
Japan
Prior art keywords
transmission
circuit
fault signal
output
antenna
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.)
Granted
Application number
JP56002401A
Other languages
Japanese (ja)
Other versions
JPS6221450B2 (en
Inventor
Osamu Sato
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
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56002401A priority Critical patent/JPS57116433A/en
Publication of JPS57116433A publication Critical patent/JPS57116433A/en
Publication of JPS6221450B2 publication Critical patent/JPS6221450B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0466—Fault detection or indication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Transmitters (AREA)

Abstract

PURPOSE:To evade unnecessary exclusive use of a circuit by discriminating abnormal transmission except in transmission, by detecting faults of a control circuit for a power source and a transmission output control circuit and then sending a fault signal which includes a device number. CONSTITUTION:If a circuit is troubled or disabled to operate at some time other than transmission time to close a switch 5, a transmission part 6 is powered up and an output appears at an antenna 7. This output is detected by a carrier- wave detecting circuit 8 and transmitted to a control part 2. The control part 2 instructs a data processing part 3 to send a fault signal, which includes the discrimination number of a device, to the transmission part 6. Consequently, a radio wave modulated by said fault signal is radiated from the antenna 7.
JP56002401A 1981-01-09 1981-01-09 Radio transmitter Granted JPS57116433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002401A JPS57116433A (en) 1981-01-09 1981-01-09 Radio transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002401A JPS57116433A (en) 1981-01-09 1981-01-09 Radio transmitter

Publications (2)

Publication Number Publication Date
JPS57116433A true JPS57116433A (en) 1982-07-20
JPS6221450B2 JPS6221450B2 (en) 1987-05-13

Family

ID=11528212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002401A Granted JPS57116433A (en) 1981-01-09 1981-01-09 Radio transmitter

Country Status (1)

Country Link
JP (1) JPS57116433A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135875A (en) * 1983-12-02 1985-07-19 アルカテル　ナ−ムロゼ　ベノ−トスハツプ Ground station equipment for navigation aid radio systems
JPH04128365U (en) * 1991-05-10 1992-11-24 マツクス株式会社 Time card guide device in time recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135875A (en) * 1983-12-02 1985-07-19 アルカテル　ナ−ムロゼ　ベノ−トスハツプ Ground station equipment for navigation aid radio systems
JPH04128365U (en) * 1991-05-10 1992-11-24 マツクス株式会社 Time card guide device in time recorder

Also Published As

Publication number Publication date
JPS6221450B2 (en) 1987-05-13

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