AT160332B - Device for interference suppression of radio reception. - Google Patents

Device for interference suppression of radio reception.

Info

Publication number
AT160332B
AT160332B AT160332DA AT160332B AT 160332 B AT160332 B AT 160332B AT 160332D A AT160332D A AT 160332DA AT 160332 B AT160332 B AT 160332B
Authority
AT
Austria
Prior art keywords
interference suppression
radio reception
capacitors
axis
tuning
Prior art date
Application number
Other languages
German (de)
Inventor
Theodor Karger
Original Assignee
Theodor Karger
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.)
Publication date
Application granted granted Critical
Publication of AT160332B publication Critical patent/AT160332B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zur Entstörung des Rundfunkempfanges. 
 EMI1.1 
 

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 Kreises notwendig. 2. Je zwei Kondensatoren liegen auf einer gemeinsamen Achse. 3. Alle vier Kondensatoren liegen auf einer gemeinsamen oder auf gekoppelten Achsen, damit ist bei fabriksneuen Empfängern die Möglichkeit gegeben, das gesamte Aggregat gleich mit einzubauen. Bei Kupplung des Entstörungsgerätes mit der Achse der Abstimmkondensatoren im Empfänger selbst entfällt dann die gesonderte Abstimmung des Entstörgerätes. Bei später eingebauten Entstörgeräten ist dies nicht so leicht möglich, da die beiden Netzleiter gegen Erde verschiedene Kapazitäten haben.

   In diesen Fällen muss die Differenz an Ort und Stelle an dem Entstörgerät behoben werden, wonach es ohne weiteres möglich ist, die vier Kondensatoren des Entstörgerätes mit einer Achse bzw. einem Einstellknopf zu bedienen. 



   Bei den neuen Entstörungsgeräten ergeben sich für die Spulen und die Kondensatoren durchwegs Werte, wie sie bei den Rundfunkempfängern auch im   übrigen   vorkommen, während dieselben bei den bisher verwendeten Entstörungsgeräten weit grösser waren. 



    PATENT-ANSPRÜCHE :  
1.   Vorrichtung zur Entstörung des Rundfunkempfanges bei vom LicM netz gespeisten Empfängern,   bei der der Netzstrom vor seinem Eintritt in den Empfänger einen auf die Empfangswelle abgestimmten Sperrkreis   durchfliesst,   dadurch gekennzeichnet, dass vor dem Sperrkreis   (3   3b) eine Erdableitung   a,   7b) vorgesehen ist, welche einen ebenfalls auf die Empfangswelle abgestimmten Leitkreis   (6a,   6b) aufweist, derart, dass alle aus dem Netz horeingelangenden Hochfrequenzwellen   (Nutzwellen   und Störwellen) des Empfangsbereiches zur Erde abgeleitet werden können.



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  Device for interference suppression of radio reception.
 EMI1.1
 

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 Circle necessary. 2. Two capacitors each lie on a common axis. 3. All four capacitors are on a common axis or on a coupled axis, so with brand new receivers the possibility is given to install the entire unit at the same time. If the interference suppression device is coupled to the axis of the tuning capacitors in the receiver itself, the interference suppression device does not need to be coordinated separately. This is not so easy to do with interference suppression devices installed later, as the two mains conductors have different capacities to earth.

   In these cases, the difference must be corrected on the spot on the interference suppression device, after which it is easily possible to operate the four capacitors of the interference suppression device with an axis or an adjusting knob.



   In the case of the new interference suppression devices, the coils and capacitors consistently have values that are also found in the rest of the radio receivers, while the same were far greater in the interference suppression devices used previously.



    PATENT CLAIMS:
1. Device for interference suppression of radio reception in receivers fed by the LicM network, in which the mains current flows through a blocking circuit matched to the receiving wave before it enters the receiver, characterized in that a ground conductor a, 7b) is provided in front of the blocking circuit (3 3b) which has a control circuit (6a, 6b) that is also matched to the received wave, in such a way that all high-frequency waves (useful waves and interfering waves) coming from the network in the receiving area can be diverted to earth.

 

Claims (1)

2. Vorrichtung nach Anspruch l, dadurch gekennzeichnet, dass die Mittel zur Abstimmung der Sperr-und Leitkreise (3a, 3b und 6a, 6b) auf die Empfangswelle miteinander zwangläufig gekuppelt sind. 2. Device according to claim l, characterized in that the means for coordinating the blocking and control circuits (3a, 3b and 6a, 6b) are inevitably coupled to one another on the receiving shaft. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Mittel zur Abstimmung der Sperr-und Leitkreise (3a, 3b und 6a, 6b) auch mit den Mitteln zur Abstimmung des Empfangsgerätes auf die gewünschte Empfangswelle zwangläufig gekuppelt sind. EMI2.1 3. Apparatus according to claim 2, characterized in that the means for tuning the blocking and control circuits (3a, 3b and 6a, 6b) are inevitably coupled to the means for tuning the receiving device to the desired receiving wave. EMI2.1
AT160332D 1937-04-01 Device for interference suppression of radio reception. AT160332B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS160332X 1937-04-01

Publications (1)

Publication Number Publication Date
AT160332B true AT160332B (en) 1941-04-25

Family

ID=5449795

Family Applications (1)

Application Number Title Priority Date Filing Date
AT160332D AT160332B (en) 1937-04-01 Device for interference suppression of radio reception.

Country Status (1)

Country Link
AT (1) AT160332B (en)

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