GB442003A - Improvements in high frequency signalling systems - Google Patents

Improvements in high frequency signalling systems

Info

Publication number
GB442003A
GB442003A GB12988/34A GB1298834A GB442003A GB 442003 A GB442003 A GB 442003A GB 12988/34 A GB12988/34 A GB 12988/34A GB 1298834 A GB1298834 A GB 1298834A GB 442003 A GB442003 A GB 442003A
Authority
GB
United Kingdom
Prior art keywords
aerial
phase
current
attenuation
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
GB12988/34A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB442003A publication Critical patent/GB442003A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S1/022—Means for monitoring or calibrating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
GB12988/34A 1933-04-29 1934-04-30 Improvements in high frequency signalling systems Expired GB442003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US668595A US2279062A (en) 1933-04-29 1933-04-29 High frequency signaling system

Publications (1)

Publication Number Publication Date
GB442003A true GB442003A (en) 1936-01-30

Family

ID=24682979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12988/34A Expired GB442003A (en) 1933-04-29 1934-04-30 Improvements in high frequency signalling systems

Country Status (4)

Country Link
US (1) US2279062A (fr)
DE (1) DE614262C (fr)
FR (1) FR772462A (fr)
GB (1) GB442003A (fr)

Also Published As

Publication number Publication date
US2279062A (en) 1942-04-07
FR772462A (fr) 1934-10-30
DE614262C (de) 1935-06-11

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