GB152386A - Improvements in receivers of wireless signals - Google Patents

Improvements in receivers of wireless signals

Info

Publication number
GB152386A
GB152386A GB1499419A GB1499419A GB152386A GB 152386 A GB152386 A GB 152386A GB 1499419 A GB1499419 A GB 1499419A GB 1499419 A GB1499419 A GB 1499419A GB 152386 A GB152386 A GB 152386A
Authority
GB
United Kingdom
Prior art keywords
aerial
waves
condenser
switches
switch
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
GB1499419A
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.)
ERNEST EDWARD FRANKIS
Original Assignee
ERNEST EDWARD FRANKIS
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 ERNEST EDWARD FRANKIS filed Critical ERNEST EDWARD FRANKIS
Priority to GB1499419A priority Critical patent/GB152386A/en
Publication of GB152386A publication Critical patent/GB152386A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

152,386. Frankis, E. E. June 13, 1919. Wireless telegraphy. - In a wireless receiving system arranged to reduce or completely reject undesired waves, even of a frequency approximating closely to that of the desired signals, the aerial A is provided with two parallel earth connexions. One connexion has in it a variable condenser C and a switch B, and the other includes two inductances E and D, to one of which D is coupled a receiving circuit F, while to the other E is coupled an oscillatory circuit consisting of an inductance G, condenser H, and switch I. If two waves of approximately equal length are incident upon the aerial, the switches I, B are opened and the aerial tuned in the usual way to one of the waves. Both switches are then closed and the capacity H of the oscillatory circuit is adjusted in conjunction with the condenser C until the desired signals are audible and the undesired signals are eliminated.
GB1499419A 1919-06-13 1919-06-13 Improvements in receivers of wireless signals Expired GB152386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1499419A GB152386A (en) 1919-06-13 1919-06-13 Improvements in receivers of wireless signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1499419A GB152386A (en) 1919-06-13 1919-06-13 Improvements in receivers of wireless signals

Publications (1)

Publication Number Publication Date
GB152386A true GB152386A (en) 1920-10-13

Family

ID=10051190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1499419A Expired GB152386A (en) 1919-06-13 1919-06-13 Improvements in receivers of wireless signals

Country Status (1)

Country Link
GB (1) GB152386A (en)

Similar Documents

Publication Publication Date Title
GB546141A (en) Improvements in or relating to wireless receivers
US2561087A (en) Frequency modulation-amplitude modulation receiver circuits
GB403709A (en) Improvements relating to the reduction of interference in thermionic valve circuits
GB152386A (en) Improvements in receivers of wireless signals
US2040221A (en) Electrical signaling system
US1882772A (en) Wireless receiving apparatus
US1464322A (en) Radio receiving method and apparatus
GB450263A (en) Improvements in wireless receiving circuits and apparatus
GB425412A (en) Improvements in or relating to wireless and like receivers
Schottky On the origin of the super-heterodyne method
US1354290A (en) Receiver of wireless signals
US1767751A (en) Receiving circuit
US1624185A (en) Wireless receiving circuits
US1545502A (en) Radiotelephony
GB466981A (en) Improvements in or relating to antenna coupling devices
GB542485A (en) Improvements in coupling-circuit arrangements in radio-receivers
SU538A1 (en) Radio receiver
GB202111A (en) Improvements in and relating to receiving arrangements for wireless telegraphy and telephony
GB594657A (en) Improvements in or relating to tunable circuit arrangements
GB477048A (en) Improvements in or relating to wireless receiving apparatus
GB563520A (en) Improvements in or relating to electrical apparatus including networks suitable for use for dual signal transmission
GB628344A (en) Improvements in broadcast radio receivers incorporating frame aerial systems
GB666843A (en) Improvements in electrical coupling circuits
GB145473A (en) Improvements in and relating to radio-telephony
GB1042655A (en) Oscillator circuit