SE443269B - Forfarande for att under mottagningspauser automatiskt overvaka en radiomottagares funktioner, speciellt dess hf-kenslighet och dess lf-utgangsniva, samt kopplingsanordning for genomforande av forfarandet. - Google Patents

Forfarande for att under mottagningspauser automatiskt overvaka en radiomottagares funktioner, speciellt dess hf-kenslighet och dess lf-utgangsniva, samt kopplingsanordning for genomforande av forfarandet.

Info

Publication number
SE443269B
SE443269B SE7812648A SE7812648A SE443269B SE 443269 B SE443269 B SE 443269B SE 7812648 A SE7812648 A SE 7812648A SE 7812648 A SE7812648 A SE 7812648A SE 443269 B SE443269 B SE 443269B
Authority
SE
Sweden
Prior art keywords
signal
receiver
noise
threshold value
delay circuit
Prior art date
Application number
SE7812648A
Other languages
English (en)
Swedish (sv)
Other versions
SE7812648L (sv
Inventor
E Grohmann
D J Braak
Original Assignee
Felten & Guilleaume 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 Felten & Guilleaume Gmbh filed Critical Felten & Guilleaume Gmbh
Publication of SE7812648L publication Critical patent/SE7812648L/xx
Publication of SE443269B publication Critical patent/SE443269B/sv

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)
SE7812648A 1977-12-10 1978-12-08 Forfarande for att under mottagningspauser automatiskt overvaka en radiomottagares funktioner, speciellt dess hf-kenslighet och dess lf-utgangsniva, samt kopplingsanordning for genomforande av forfarandet. SE443269B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2755221A DE2755221C2 (de) 1977-12-10 1977-12-10 Verfahren zur selbsttätigen Überwachung der HF-Empfindlichkeit und des NF-Ausgangspegels eines Funkempfängers und Schaltungsanordnung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
SE7812648L SE7812648L (sv) 1979-06-11
SE443269B true SE443269B (sv) 1986-02-17

Family

ID=6025880

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812648A SE443269B (sv) 1977-12-10 1978-12-08 Forfarande for att under mottagningspauser automatiskt overvaka en radiomottagares funktioner, speciellt dess hf-kenslighet och dess lf-utgangsniva, samt kopplingsanordning for genomforande av forfarandet.

Country Status (14)

Country Link
US (1) US4322857A (es)
AT (1) AT375510B (es)
AU (1) AU523348B2 (es)
CH (1) CH638936A5 (es)
DE (1) DE2755221C2 (es)
DK (1) DK150838C (es)
ES (1) ES475811A1 (es)
FR (1) FR2411515A1 (es)
GB (1) GB2011763B (es)
IT (1) IT1101492B (es)
NL (1) NL7812054A (es)
NO (1) NO147935C (es)
SE (1) SE443269B (es)
YU (1) YU287378A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854682B2 (ja) * 1978-04-17 1983-12-06 富士通テン株式会社 中間周波検出回路
US4317214A (en) * 1980-07-14 1982-02-23 Attinello John S Apparatus for simulating interference transmissions
DE3138650A1 (de) * 1981-09-29 1983-04-14 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur ueberwachung einer funkempfangsanlage
DE3148336C2 (de) * 1981-12-07 1985-03-21 ANT Nachrichtentechnik GmbH, 7150 Backnang Schaltungsanordnung zum Auswerten eines in einer Nachrichtenempfangsanlage auftretenden Rauschsignals
US4625332A (en) * 1985-04-01 1986-11-25 The United States Of America As Represented By The Secretary Of The Navy Programmable time varying attenuator
JPS6235727A (ja) * 1985-08-09 1987-02-16 Nec Corp 自己診断機能を有する受信機
US4742561A (en) * 1985-09-10 1988-05-03 Home Box Office, Inc. Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment
US4972511A (en) * 1988-12-05 1990-11-20 The United States Of America As Represented By The Secretary Of The Navy Receiver test apparatus with test message injector
US5450624A (en) * 1993-01-07 1995-09-12 Ford Motor Company Method and apparatus for diagnosing amp to speaker connections
US5815584A (en) * 1996-11-08 1998-09-29 Ford Motor Company Automatic detection of shorted loudspeakers in automotive audio systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039110B (de) * 1957-03-15 1958-09-18 Deutsche Bundespost Alarmeinrichtung zum Signalisieren eines Fehlers in einem Sprechfunkempfaenger fuer Frequenzmodulation
DE1466552B2 (de) * 1965-12-11 1971-03-18 Tekade Feiten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Ueberwachungsanordnung fuer einen funkempfaenger
NL7105272A (es) * 1971-04-20 1972-10-24
US3750177A (en) * 1971-05-18 1973-07-31 Collins Radio Co Instrument landing system receiver monitor
US3737781A (en) * 1971-09-15 1973-06-05 Nasa Signal-to-noise ratio determination circuit
JPS5321241B2 (es) * 1972-07-08 1978-07-01
DE2319087C2 (de) * 1973-04-16 1974-11-07 Battelle-Institut E.V., 6000 Frankfurt Verfahren zum Überprüfen von Funk-Empfangsanlagen
US3845484A (en) * 1973-06-12 1974-10-29 Bendix Corp Signal generator for testing vor navigation receivers
US4125809A (en) * 1977-11-09 1978-11-14 The United States Of America As Represented By The Secretary Of The Navy Digital C/kT meter

Also Published As

Publication number Publication date
SE7812648L (sv) 1979-06-11
DK150838B (da) 1987-06-29
FR2411515B1 (es) 1984-01-27
YU287378A (en) 1983-04-30
DE2755221A1 (de) 1979-06-13
ES475811A1 (es) 1979-11-16
NO147935C (no) 1983-07-06
CH638936A5 (de) 1983-10-14
NL7812054A (nl) 1979-06-12
NO784142L (no) 1979-06-12
NO147935B (no) 1983-03-28
IT1101492B (it) 1985-09-28
GB2011763A (en) 1979-07-11
FR2411515A1 (fr) 1979-07-06
AU523348B2 (en) 1982-07-22
DK150838C (da) 1988-06-06
IT7830612A0 (it) 1978-12-06
ATA877978A (de) 1983-12-15
DK555378A (da) 1979-06-11
DE2755221C2 (de) 1985-05-30
AT375510B (de) 1984-08-10
GB2011763B (en) 1982-04-28
AU4238278A (en) 1979-06-14
US4322857A (en) 1982-03-30

Similar Documents

Publication Publication Date Title
SE443269B (sv) Forfarande for att under mottagningspauser automatiskt overvaka en radiomottagares funktioner, speciellt dess hf-kenslighet och dess lf-utgangsniva, samt kopplingsanordning for genomforande av forfarandet.
US4724545A (en) Squelch detecting circuit with squelch start determining means
SE441325B (sv) Storelimineringskrets
EP0667533A2 (en) Loss-of-signal detector
US5566359A (en) Prevention of simultaneous transmitter operation in a ground radio transmitting and receiving apparatus
US4535358A (en) Line synchronizing circuit for a picture display devices and picture display device comprising such a circuit
GB1506675A (en) Circuit arrangement for evaluating signals from a testing device
US4728953A (en) Closed loop control of receiver turn-on to increase radar sensitivity
US2983852A (en) Object detection system
US3938148A (en) Automatic frequency control system
US4015206A (en) Protective relaying modem receiver
US4506255A (en) Operation test circuit for fire detectors
US4815108A (en) Signal detection apparatus
DK143960B (da) Automatisk forstaerkningsreguleringskredsloeb til fjernsynsmodtagere
US4189679A (en) Noise detecting circuit having noise-immune AGC
US4821262A (en) System for transmitting and receiving data in a time-division multiplex mode applicable to a vehicle
US4604622A (en) Proximity radar
US4384292A (en) Electronic counter-counter-measure device
US2417310A (en) Radio direction finder
SU1265821A1 (ru) Дымовой извещатель
US2655651A (en) Zero check or calibrating system for pulse altimeters
EP0209782A2 (en) Selective vibration detector
US4494115A (en) Controller for a locked carrier distributed multiplexed telemetry system
US3079600A (en) Radar error signal memory circuit
RU1824646C (ru) Устройство дл телесигнализации

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7812648-9

Effective date: 19920704

Format of ref document f/p: F