GB1023742A - Automatic frequency control amplifier - Google Patents

Automatic frequency control amplifier

Info

Publication number
GB1023742A
GB1023742A GB4825763A GB4825763A GB1023742A GB 1023742 A GB1023742 A GB 1023742A GB 4825763 A GB4825763 A GB 4825763A GB 4825763 A GB4825763 A GB 4825763A GB 1023742 A GB1023742 A GB 1023742A
Authority
GB
United Kingdom
Prior art keywords
frequency
frequency control
dec
local oscillator
automatic frequency
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
GB4825763A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1023742A publication Critical patent/GB1023742A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB4825763A 1962-12-08 1963-12-06 Automatic frequency control amplifier Expired GB1023742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST20075A DE1177218B (de) 1962-12-08 1962-12-08 Schaltung zur Frequenznachstellung

Publications (1)

Publication Number Publication Date
GB1023742A true GB1023742A (en) 1966-03-23

Family

ID=7458435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4825763A Expired GB1023742A (en) 1962-12-08 1963-12-06 Automatic frequency control amplifier

Country Status (4)

Country Link
BE (1) BE640959A (cs)
DE (1) DE1177218B (cs)
GB (1) GB1023742A (cs)
NL (1) NL301394A (cs)

Also Published As

Publication number Publication date
NL301394A (cs)
BE640959A (cs) 1964-06-09
DE1177218B (de) 1964-09-03

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