GB460488A - Improvements in or relating to directional radio receivers - Google Patents

Improvements in or relating to directional radio receivers

Info

Publication number
GB460488A
GB460488A GB14636/36A GB1463636A GB460488A GB 460488 A GB460488 A GB 460488A GB 14636/36 A GB14636/36 A GB 14636/36A GB 1463636 A GB1463636 A GB 1463636A GB 460488 A GB460488 A GB 460488A
Authority
GB
United Kingdom
Prior art keywords
frequency
synchronism
receiver
adjustment
directional
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
GB14636/36A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB460488A publication Critical patent/GB460488A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

460,488. Directional wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 23, 1936, No. 14636. Convention date, May 24, 1935. [Class 40 (v)] In a wireless directional receiver having its sensitivity varied in synchronism with the periodic transmission of signals from the transmitter so as not to respond to reflected signals, the synchronism is effected by a local source adjustable as'regards amplitude, phase, and frequency. In the arrangement shown, a valve V of the receiver is normally blocked by a biassing battery VG, but is periodically rendered operative for short periods by voltages applied from a relaxation oscillator O, G. To obtain synchronism, the frequency of the control is adjusted by varying elements R1, C2 until the local frequency no longer beats with the incoming signal frequency, and the two are then brought into phase agreement by adjustment of the tapping P. Resistance R4 serves for amplitude adjustment.
GB14636/36A 1935-05-24 1936-05-23 Improvements in or relating to directional radio receivers Expired GB460488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE460488X 1935-05-24

Publications (1)

Publication Number Publication Date
GB460488A true GB460488A (en) 1937-01-28

Family

ID=6539734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14636/36A Expired GB460488A (en) 1935-05-24 1936-05-23 Improvements in or relating to directional radio receivers

Country Status (1)

Country Link
GB (1) GB460488A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445584A (en) * 1942-04-13 1948-07-20 Gen Electric Pulse receiving system
US2543072A (en) * 1944-06-09 1951-02-27 Sperry Corp Automatic range gate
US2545567A (en) * 1945-04-02 1951-03-20 Bridges Donald Edward Selective circuit arrangement
US2599777A (en) * 1945-05-14 1952-06-10 Us Navy Gain control device for radio receivers
US2842763A (en) * 1942-03-12 1958-07-08 Sperry Rand Corp Pulse receiving systems
DE973139C (en) * 1946-04-30 1959-12-10 Rank Cintel Ltd Method for the transmission of monitoring signals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842763A (en) * 1942-03-12 1958-07-08 Sperry Rand Corp Pulse receiving systems
US2445584A (en) * 1942-04-13 1948-07-20 Gen Electric Pulse receiving system
US2543072A (en) * 1944-06-09 1951-02-27 Sperry Corp Automatic range gate
US2545567A (en) * 1945-04-02 1951-03-20 Bridges Donald Edward Selective circuit arrangement
US2599777A (en) * 1945-05-14 1952-06-10 Us Navy Gain control device for radio receivers
DE973139C (en) * 1946-04-30 1959-12-10 Rank Cintel Ltd Method for the transmission of monitoring signals

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