GB353476A - - Google Patents

Info

Publication number
GB353476A
GB353476A GB12713/30A GB1271330A GB353476A GB 353476 A GB353476 A GB 353476A GB 12713/30 A GB12713/30 A GB 12713/30A GB 1271330 A GB1271330 A GB 1271330A GB 353476 A GB353476 A GB 353476A
Authority
GB
United Kingdom
Prior art keywords
choke
circuits
energy
antennμ
key
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
GB12713/30A
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.)
C Lorenz AG
Original Assignee
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 C Lorenz AG filed Critical C Lorenz AG
Publication of GB353476A publication Critical patent/GB353476A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Magnetic Treatment Devices (AREA)
  • Transmitters (AREA)

Abstract

353,476. Wireless transmitting systems. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. April 24, 1930, No. 12713. Convention date, June 6, 1929. [Class 40 (v).] In a transmitter producing a directional rotating beam or the like from two antennµ or antenna systems means are provided to interrupt the highfrequency energy supplied to the individual antenna systems alternately by key-members in the supply circuits. The exciting circuits of the key-members are in series so that the operation of keying transfers the high-frequency energy from one antenna system to the other. The Figure shows a coil L1 connected to a source of high-frequency energy and supplying through circuits I, II antennµ L7, L8. The supply circuits are tuned and contain chokes Dr1, Dr2 for controlling the transfer of energy. To obtain similar heating of the choke coils by the magnetizing windings an auxiliary non-inductive winding may be provided on choke Dr1, to be equivalent to winding W5 on choke Dr2.
GB12713/30A 1929-06-06 1930-04-24 Expired GB353476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1931864X 1929-06-06

Publications (1)

Publication Number Publication Date
GB353476A true GB353476A (en) 1931-07-24

Family

ID=7750013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12713/30A Expired GB353476A (en) 1929-06-06 1930-04-24

Country Status (4)

Country Link
US (1) US1931864A (en)
FR (1) FR694678A (en)
GB (1) GB353476A (en)
NL (1) NL31476C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188568A (en) * 1961-12-05 1965-06-08 Marelli Lenkurt S P A Arrangement for tuning of the transmitting antenna of a data transmission system

Also Published As

Publication number Publication date
US1931864A (en) 1933-10-24
FR694678A (en) 1930-12-06
NL31476C (en)

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