GB243371A - Improvements in or relating to wireless receivers of the heterodyne type - Google Patents

Improvements in or relating to wireless receivers of the heterodyne type

Info

Publication number
GB243371A
GB243371A GB29246/25A GB2924625A GB243371A GB 243371 A GB243371 A GB 243371A GB 29246/25 A GB29246/25 A GB 29246/25A GB 2924625 A GB2924625 A GB 2924625A GB 243371 A GB243371 A GB 243371A
Authority
GB
United Kingdom
Prior art keywords
filter
frequency
pass
output
valve
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
GB29246/25A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB243371A publication Critical patent/GB243371A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
GB29246/25A 1924-11-20 1925-11-19 Improvements in or relating to wireless receivers of the heterodyne type Expired GB243371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US751031A US1712036A (en) 1924-11-20 1924-11-20 Electrical signaling system and signaling method

Publications (1)

Publication Number Publication Date
GB243371A true GB243371A (en) 1926-06-24

Family

ID=25020185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29246/25A Expired GB243371A (en) 1924-11-20 1925-11-19 Improvements in or relating to wireless receivers of the heterodyne type

Country Status (4)

Country Link
US (1) US1712036A (enrdf_load_stackoverflow)
FR (1) FR243371A (enrdf_load_stackoverflow)
GB (1) GB243371A (enrdf_load_stackoverflow)
NL (1) NL18312C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR243371A (enrdf_load_stackoverflow)
NL18312C (enrdf_load_stackoverflow)
US1712036A (en) 1929-05-07

Similar Documents

Publication Publication Date Title
GB552658A (en) Improvements in frequency modulation receivers
GB434902A (en) Improvements in or relating to radio and like receivers
US2024614A (en) High frequency receiver of the superheterodyne type
US2183714A (en) Interference eliminator
US2100605A (en) Radio receiving system
GB243371A (en) Improvements in or relating to wireless receivers of the heterodyne type
US2032675A (en) Radio receiver
US1735134A (en) Method and system for constant-frequency beat reception of radiosignals
GB425412A (en) Improvements in or relating to wireless and like receivers
GB611626A (en) Improvements in radio-telegraphy
GB279808A (en) Improvements in or relating to radio receiving devices
GB360891A (en) Electrical frequency control systems
US2173156A (en) Amplitude modulation reception
US1697042A (en) Radio receiving system
US2313911A (en) Selective system
GB301498A (en) Improvements in and relating to radio receiving apparatus
US1948265A (en) System for amplification
US1789303A (en) Electrical signaling
GB234816A (en) Improvements in receivers employing the heterodyne principle
GB344869A (en) Improvements in or relating to wave-signalling systems
GB347272A (en) Improvements in or relating to thermionic valve frequency multipliers
US1682495A (en) Superheterodyne receiver
US1414232A (en) Method of receiving radiosignals with the compound heterodyne
GB460179A (en) Improvements in or relating to modulated carrier wave receivers
GB494577A (en) Improvements in automatic tuning apparatus for wireless receivers