JPS56168450A - Fault detecting system of fm radio receiver - Google Patents

Fault detecting system of fm radio receiver

Info

Publication number
JPS56168450A
JPS56168450A JP7137380A JP7137380A JPS56168450A JP S56168450 A JPS56168450 A JP S56168450A JP 7137380 A JP7137380 A JP 7137380A JP 7137380 A JP7137380 A JP 7137380A JP S56168450 A JPS56168450 A JP S56168450A
Authority
JP
Japan
Prior art keywords
fault
signal
limiter
transmitted
deciding
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
JP7137380A
Other languages
Japanese (ja)
Inventor
Kenichi Toriyama
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP7137380A priority Critical patent/JPS56168450A/en
Publication of JPS56168450A publication Critical patent/JPS56168450A/en
Pending 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

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

Abstract

PURPOSE:To give a distinction between a transmitter fault of the opposite station and a receiver fault of the own station, by deciding the presence or absence of an audio output in case the level of a limiter signal sent from the receiving part becomes less than a set value. CONSTITUTION:When the level of a limiter signal lowers and a limiter fault is detected at a limiter fault deciding part 4, a limiter fault signal is transmitted to a receiver fault deciding part 10. At the same time, a squelch open signal 11 is transmitted to an audio amplifying part 5, and the presence or absence of an audio output signal 7 is detected at an audio signal detecting part 9. If an fault is detected at a receiving part 2 or the amplifying part 5, no signal 7 is transmitted. Thus an audio output fault signal is transmitted to the deciding part 10.
JP7137380A 1980-05-30 1980-05-30 Fault detecting system of fm radio receiver Pending JPS56168450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7137380A JPS56168450A (en) 1980-05-30 1980-05-30 Fault detecting system of fm radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7137380A JPS56168450A (en) 1980-05-30 1980-05-30 Fault detecting system of fm radio receiver

Publications (1)

Publication Number Publication Date
JPS56168450A true JPS56168450A (en) 1981-12-24

Family

ID=13458628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7137380A Pending JPS56168450A (en) 1980-05-30 1980-05-30 Fault detecting system of fm radio receiver

Country Status (1)

Country Link
JP (1) JPS56168450A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05129971A (en) * 1991-11-07 1993-05-25 Mitsubishi Electric Corp Broadcast receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05129971A (en) * 1991-11-07 1993-05-25 Mitsubishi Electric Corp Broadcast receiver

Similar Documents

Publication Publication Date Title
ATE79495T1 (en) FM RECEIVER WITH NOISE REDUCTION WHEN RECEIVING SIGNALS WITH ''RALEIGH'' FADER.
AU529926B2 (en) Paged receiver battery saver
JPS55120244A (en) Phase supervisory system
JPS5772440A (en) Transmission and receiving system for radio traffic information
JPS56168450A (en) Fault detecting system of fm radio receiver
GB1019410A (en) Voice frequency signalling system
JPS57170617A (en) Receiver
JPS57116438A (en) Radio communication system
JPS5739629A (en) Radio equipment
EP0326746A3 (en) Radio data system receiver
JPS5720047A (en) Am stereophonic receiver
JPS5528615A (en) Data communication system
JPS5363910A (en) Audible signal sound signal detection system
JPS5797745A (en) Am stereo receiver
JPS5723339A (en) Lincompex radio equipment
JPS5713824A (en) Lincompex radio equipment
GB1532103A (en) Method and apparatus for translating multiple frequency signalling
GB1268782A (en) Transmission system
JPS56156091A (en) Remote control method
JPS5582543A (en) Fm receiver
JPS56134842A (en) Alarm broadcasting receiver
JPS57150245A (en) Beat detecting system of radio receiver
JPS57198511A (en) Detecting method for dropout
JPS5760744A (en) Discrimination method for signal transmission state in mobile communication
JPS5784675A (en) Facsimile absence receiver