GB498985A - Improvements in or relating to antenna structures, particularly for radio direction finding systems - Google Patents

Improvements in or relating to antenna structures, particularly for radio direction finding systems

Info

Publication number
GB498985A
GB498985A GB11220/38A GB1122038A GB498985A GB 498985 A GB498985 A GB 498985A GB 11220/38 A GB11220/38 A GB 11220/38A GB 1122038 A GB1122038 A GB 1122038A GB 498985 A GB498985 A GB 498985A
Authority
GB
United Kingdom
Prior art keywords
resistances
relays
relay
during
april
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
GB11220/38A
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 GB498985A publication Critical patent/GB498985A/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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Lock And Its Accessories (AREA)
GB11220/38A 1937-04-12 1938-04-12 Improvements in or relating to antenna structures, particularly for radio direction finding systems Expired GB498985A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE205225X 1937-04-12

Publications (1)

Publication Number Publication Date
GB498985A true GB498985A (en) 1939-01-17

Family

ID=5786023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11220/38A Expired GB498985A (en) 1937-04-12 1938-04-12 Improvements in or relating to antenna structures, particularly for radio direction finding systems

Country Status (5)

Country Link
US (1) US2217424A (en:Method)
CH (1) CH205225A (en:Method)
FR (1) FR836494A (en:Method)
GB (1) GB498985A (en:Method)
NL (1) NL51162C (en:Method)

Also Published As

Publication number Publication date
FR836494A (fr) 1939-01-18
NL51162C (en:Method)
US2217424A (en) 1940-10-08
CH205225A (de) 1939-06-15

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