GB512121A - An electro-mechanical frequency compensating device for wireless transmitting and receiving apparatus - Google Patents

An electro-mechanical frequency compensating device for wireless transmitting and receiving apparatus

Info

Publication number
GB512121A
GB512121A GB2062/39A GB206239A GB512121A GB 512121 A GB512121 A GB 512121A GB 2062/39 A GB2062/39 A GB 2062/39A GB 206239 A GB206239 A GB 206239A GB 512121 A GB512121 A GB 512121A
Authority
GB
United Kingdom
Prior art keywords
electro
receiving apparatus
wireless transmitting
compensating device
mechanical 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
GB2062/39A
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.)
ANONIMA FIMI SOC
Original Assignee
ANONIMA FIMI SOC
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 ANONIMA FIMI SOC filed Critical ANONIMA FIMI SOC
Publication of GB512121A publication Critical patent/GB512121A/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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)

Abstract

512,121. Adjusting wireless apparatus. SOC. ANON. FIMI. Jan. 20, 1939, No. 2062. Convention date, Jan. 28, 1938. [Class 37] [Also in Group XL] In a combined wireless transmitter and receiver, the change-over switch operates simultaneously, through levers 12, 11, 10 and a friction collar 9, the moving electrode 8 of a vernier tuning condenser structurally combined with the main tuning condenser 6, 6<1>. The initial position of the member 8 may be set by a hand operated spindle passing through the collar 9.
GB2062/39A 1938-01-28 1939-01-20 An electro-mechanical frequency compensating device for wireless transmitting and receiving apparatus Expired GB512121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT512121X 1938-01-28

Publications (1)

Publication Number Publication Date
GB512121A true GB512121A (en) 1939-08-29

Family

ID=11274646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2062/39A Expired GB512121A (en) 1938-01-28 1939-01-20 An electro-mechanical frequency compensating device for wireless transmitting and receiving apparatus

Country Status (1)

Country Link
GB (1) GB512121A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513796A (en) * 1945-10-04 1950-07-04 Rca Corp Switch and tuning device for radio transceivers
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US2515225A (en) * 1944-12-30 1950-07-18 Rca Corp Transceiver having switch controlled frequency compensator
US2611858A (en) * 1948-04-22 1952-09-23 Hallicrafters Co Tuning apparatus for electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US2515225A (en) * 1944-12-30 1950-07-18 Rca Corp Transceiver having switch controlled frequency compensator
US2513796A (en) * 1945-10-04 1950-07-04 Rca Corp Switch and tuning device for radio transceivers
US2611858A (en) * 1948-04-22 1952-09-23 Hallicrafters Co Tuning apparatus for electronic equipment

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