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 apparatusInfo
- 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
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.
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)
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 |
-
1939
- 1939-01-20 GB GB2062/39A patent/GB512121A/en not_active Expired
Cited By (4)
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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