GB529862A - Improvements in or relating to wireless heterodyne reciving apparatus - Google Patents

Improvements in or relating to wireless heterodyne reciving apparatus

Info

Publication number
GB529862A
GB529862A GB1695639A GB1695639A GB529862A GB 529862 A GB529862 A GB 529862A GB 1695639 A GB1695639 A GB 1695639A GB 1695639 A GB1695639 A GB 1695639A GB 529862 A GB529862 A GB 529862A
Authority
GB
United Kingdom
Prior art keywords
frequency
local
intermediate frequency
wireless
reciving
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
GB1695639A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1695639A priority Critical patent/GB529862A/en
Publication of GB529862A publication Critical patent/GB529862A/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
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

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

Abstract

529,862. Wireless receiving circuits. GENERAL ELECTRIC CO., Ltd., BLIGH, N. R., and BLOCH, A. June 9, 1939, No. 16956. [Class 40 (v)] In a radio receiver particularly for short wave television reception on a single wavelength, intermediate frequency drift is reduced by making the local frequency proportional to the intermediate frequency. The natural frequency of the local oscillator is adjusted to be close to the intermediate frequency and is then made equal to the intermediate frequency by the local oscillator being forced by the intermediate oscillations. The desired local frequency is then obtained from the oscillator by means of a frequency multiplier. Specification 415,051 is referred to.
GB1695639A 1939-06-09 1939-06-09 Improvements in or relating to wireless heterodyne reciving apparatus Expired GB529862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1695639A GB529862A (en) 1939-06-09 1939-06-09 Improvements in or relating to wireless heterodyne reciving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1695639A GB529862A (en) 1939-06-09 1939-06-09 Improvements in or relating to wireless heterodyne reciving apparatus

Publications (1)

Publication Number Publication Date
GB529862A true GB529862A (en) 1940-11-29

Family

ID=10086684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1695639A Expired GB529862A (en) 1939-06-09 1939-06-09 Improvements in or relating to wireless heterodyne reciving apparatus

Country Status (1)

Country Link
GB (1) GB529862A (en)

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