CH214301A - Verfahren zur Leistungsersparnis in Hochfrequenzsendern durch Trägersteuerung. - Google Patents

Verfahren zur Leistungsersparnis in Hochfrequenzsendern durch Trägersteuerung.

Info

Publication number
CH214301A
CH214301A CH214301DA CH214301A CH 214301 A CH214301 A CH 214301A CH 214301D A CH214301D A CH 214301DA CH 214301 A CH214301 A CH 214301A
Authority
CH
Switzerland
Prior art keywords
saving power
carrier control
frequency transmitters
transmitters
frequency
Prior art date
Application number
Other languages
English (en)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C 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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH214301A publication Critical patent/CH214301A/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/62—Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
CH214301D 1938-03-19 1939-03-02 Verfahren zur Leistungsersparnis in Hochfrequenzsendern durch Trägersteuerung. CH214301A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE214301X 1938-03-19

Publications (1)

Publication Number Publication Date
CH214301A true CH214301A (de) 1941-04-15

Family

ID=5817983

Family Applications (1)

Application Number Title Priority Date Filing Date
CH214301D CH214301A (de) 1938-03-19 1939-03-02 Verfahren zur Leistungsersparnis in Hochfrequenzsendern durch Trägersteuerung.

Country Status (5)

Country Link
US (1) US2232080A (de)
BE (1) BE433230A (de)
CH (1) CH214301A (de)
FR (1) FR851465A (de)
NL (1) NL56601C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521052A (en) * 1946-03-30 1950-09-05 Bendix Aviat Corp Controlled carrier transmitter
US2671849A (en) * 1950-11-22 1954-03-09 Automatic Elect Lab Automatic volume control for alternating current
BE527481A (de) * 1953-05-18
DE1054125B (de) * 1956-02-18 1959-04-02 Siemens Ag Anordnung zum automatischen Ein- und Ausschalten der Sender einer drahtlosen Fernschreib-Telegrafieverbindung
US3397401A (en) * 1966-05-27 1968-08-13 Hughes Aircraft Co Voice operated communication system
FR2655790B1 (fr) * 1989-12-08 1992-01-24 Thomson Tubes Electroniques Tube a grille a rendement ameliore.

Also Published As

Publication number Publication date
FR851465A (fr) 1940-01-09
NL56601C (de)
US2232080A (en) 1941-02-18
BE433230A (de)

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