ATA663778A - DEVICE FOR MEASURING THE RECEIVING QUALITY OF A FREQUENCY-MODULATED VHF SIGNAL - Google Patents

DEVICE FOR MEASURING THE RECEIVING QUALITY OF A FREQUENCY-MODULATED VHF SIGNAL

Info

Publication number
ATA663778A
ATA663778A AT663778A AT663778A ATA663778A AT A663778 A ATA663778 A AT A663778A AT 663778 A AT663778 A AT 663778A AT 663778 A AT663778 A AT 663778A AT A663778 A ATA663778 A AT A663778A
Authority
AT
Austria
Prior art keywords
measuring
frequency
receiving quality
vhf signal
modulated vhf
Prior art date
Application number
AT663778A
Other languages
German (de)
Other versions
AT361581B (en
Original Assignee
Inst Rundfunktechnik Gmbh
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 Inst Rundfunktechnik Gmbh filed Critical Inst Rundfunktechnik Gmbh
Publication of ATA663778A publication Critical patent/ATA663778A/en
Application granted granted Critical
Publication of AT361581B publication Critical patent/AT361581B/en

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
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/125—Small buildings, arranged in other buildings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/06—Measuring depth of modulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • H03J3/14—Visual indication, e.g. magic eye
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Quality & Reliability (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Stereo-Broadcasting Methods (AREA)
AT663778A 1977-05-28 1978-09-14 DEVICE FOR MEASURING THE RECEIVING QUALITY OF A FREQUENCY-MODULATED VHF SIGNAL AT361581B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2724375A DE2724375C3 (en) 1977-05-28 1977-05-28 Method and device for measuring the reception quality of a frequency-modulated VHF signal

Publications (2)

Publication Number Publication Date
ATA663778A true ATA663778A (en) 1980-08-15
AT361581B AT361581B (en) 1981-03-25

Family

ID=6010227

Family Applications (1)

Application Number Title Priority Date Filing Date
AT663778A AT361581B (en) 1977-05-28 1978-09-14 DEVICE FOR MEASURING THE RECEIVING QUALITY OF A FREQUENCY-MODULATED VHF SIGNAL

Country Status (5)

Country Link
AT (1) AT361581B (en)
BE (1) BE87T1 (en)
DE (1) DE2724375C3 (en)
GB (1) GB2056096A (en)
NL (1) NL7815070A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929647C2 (en) * 1979-07-21 1990-09-13 Blaupunkt-Werke Gmbh, 3200 Hildesheim FM stereo car receiver
JPH04291524A (en) * 1991-03-20 1992-10-15 Matsushita Electric Ind Co Ltd Receiver

Also Published As

Publication number Publication date
DE2724375A1 (en) 1978-11-30
DE2724375C3 (en) 1979-11-22
NL7815070A (en) 1980-12-31
GB2056096A (en) 1981-03-11
DE2724375B2 (en) 1979-03-29
AT361581B (en) 1981-03-25
BE87T1 (en) 1980-11-07

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee