GB490485A - Superheterodyne radio receiving systems for receiving two signals with a single antenna - Google Patents

Superheterodyne radio receiving systems for receiving two signals with a single antenna

Info

Publication number
GB490485A
GB490485A GB26963/37A GB2696337A GB490485A GB 490485 A GB490485 A GB 490485A GB 26963/37 A GB26963/37 A GB 26963/37A GB 2696337 A GB2696337 A GB 2696337A GB 490485 A GB490485 A GB 490485A
Authority
GB
United Kingdom
Prior art keywords
signals
receiving
coupling
coupled
aerial
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.)
Expired
Application number
GB26963/37A
Other languages
English (en)
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB490485A publication Critical patent/GB490485A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/24—Apparatus or circuits at the receiving end
    • H04L15/26—Apparatus or circuits at the receiving end operating only on reception of predetermined code signals, e.g. distress signals, party-line call signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/14—Buffers absorbing shocks by mechanical friction action; Combinations of mechanical shock-absorbers and springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • 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
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
GB26963/37A 1936-10-07 1937-10-05 Superheterodyne radio receiving systems for receiving two signals with a single antenna Expired GB490485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE750716T 1936-10-07

Publications (1)

Publication Number Publication Date
GB490485A true GB490485A (en) 1938-08-16

Family

ID=6544118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26963/37A Expired GB490485A (en) 1936-10-07 1937-10-05 Superheterodyne radio receiving systems for receiving two signals with a single antenna

Country Status (6)

Country Link
US (1) US2195888A (en:Method)
BE (1) BE382543A (en:Method)
DE (1) DE750716C (en:Method)
FR (1) FR827205A (en:Method)
GB (1) GB490485A (en:Method)
NL (1) NL47611C (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764713C (de) * 1938-11-12 1953-06-08 Aeg Verfahren zur UEbertragung eines Anrufsignals zu einem bereits mit einem anderen Sender in Verbindung stehenden Empfaenger fuer frequenzmodulierte Schwingungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE392979C (de) * 1922-06-25 1924-03-31 Erwin Kindler Sende- und Empfaengerschaltung fuer Mehrfachtelegraphie und -telephonie auf einer Welle
FR699825A (fr) * 1930-07-18 1931-02-20 Dispositif permettant d'adapter un radio-récepteur à la réception d'ondes qu'il ne peut recevoir directement
DE600193C (de) * 1932-07-02 1935-09-28 Telefunken Gmbh Einrichtung zur Anzeige sowohl der Flugzielrichtung mittels Empfangs auf laengeren Wellen als auch der Landungsfeldstaerke mittels Empfangs von ultrakurzen Wellen
CH169877A (de) * 1933-09-07 1934-06-15 Komet Radio A G Zusatzgerät für Radioempfänger zur Erweiterung des Wellenbereiches auf lange Wellen.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764713C (de) * 1938-11-12 1953-06-08 Aeg Verfahren zur UEbertragung eines Anrufsignals zu einem bereits mit einem anderen Sender in Verbindung stehenden Empfaenger fuer frequenzmodulierte Schwingungen

Also Published As

Publication number Publication date
DE750716C (de) 1945-01-26
FR827205A (fr) 1938-04-21
NL47611C (en:Method) 1940-01-15
BE382543A (en:Method) 1931-10-31
US2195888A (en) 1940-04-02

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