GB689195A - Device for suppressing disturbances by electric apparatus in a radio receiver at all wavelength ranges - Google Patents
Device for suppressing disturbances by electric apparatus in a radio receiver at all wavelength rangesInfo
- Publication number
- GB689195A GB689195A GB16445/50A GB1644550A GB689195A GB 689195 A GB689195 A GB 689195A GB 16445/50 A GB16445/50 A GB 16445/50A GB 1644550 A GB1644550 A GB 1644550A GB 689195 A GB689195 A GB 689195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- conductor
- primary
- radio receiver
- metal screen
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1009—Placing the antenna at a place where the noise level is low and using a noise-free transmission line between the antenna and the receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
689,195. Radio receiving systems. IJZER, J. R. June 30, 1960 [July 9, 1949], No. 16445/50. Class 40 (v). In an arrangement for suppressing disturbances in a radio receiver by electrical apparatus, the-aerial 1 is arranged outside the disturbance region and is connected by a conductor 2 to one side of the primary P of a transformer a conductor 3 which is parallel and close to the conductor 2 being connected to the other side of the winding P. The secondary S is connected to the receiver and an earthed metal screen 5 is arranged between the windings. The transformer primary, Fig. 2 (not shown), is not conductively connected to earth and is arranged in two equal parts which are wound in opposite directions and surrounded by a cylindrical metal screen, the secondary winding being arranged over the metal screen. Since the disturbance voltage in conductors 2 and 3 is substantially equal no disturbance voltage is induced into the secondary winding S. It is stated that by avoiding a conductive earth connection to the primary winding and utilizing the capacitance between the primary winding and the earthed screen the symmetry of the arrangement is improved.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL689195X | 1949-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB689195A true GB689195A (en) | 1953-03-25 |
Family
ID=19805754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16445/50A Expired GB689195A (en) | 1949-07-09 | 1950-06-30 | Device for suppressing disturbances by electric apparatus in a radio receiver at all wavelength ranges |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE496866A (en) |
| FR (1) | FR1022915A (en) |
| GB (1) | GB689195A (en) |
-
0
- BE BE496866D patent/BE496866A/xx unknown
-
1950
- 1950-06-30 GB GB16445/50A patent/GB689195A/en not_active Expired
- 1950-07-05 FR FR1022915D patent/FR1022915A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE496866A (en) | |
| FR1022915A (en) | 1953-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1134590A (en) | Ground leakage differential protective apparatus | |
| GB689195A (en) | Device for suppressing disturbances by electric apparatus in a radio receiver at all wavelength ranges | |
| US2139533A (en) | Elimination of atmospheric radio disturbances | |
| US1723908A (en) | Ignition system | |
| US2339088A (en) | Electric induction apparatus | |
| US3968408A (en) | Neutralizing transformer | |
| US2051520A (en) | Cross talk eliminator | |
| GB1157411A (en) | Improvements in Temperature Measuring Apparatus and Method | |
| GB960370A (en) | Improvements in apparatus for the non-destructive testing of electrical insulation | |
| USRE19854E (en) | Duplex radio aerial system | |
| GB1028593A (en) | Electrical apparatus | |
| US1019236A (en) | Signaling. | |
| GB1463471A (en) | Arrangement for preventing glow discharges | |
| US1995152A (en) | Antenna | |
| US1946680A (en) | Means for preventing interference | |
| GB961870A (en) | Signal energy take-off device | |
| GB823421A (en) | High frequency transformer | |
| GB882941A (en) | Improvements in and relating to capacitor voltage dividers | |
| GB1123347A (en) | Testing of inductive windings | |
| GB658348A (en) | Improvements in and relating to high frequency electric transformers | |
| GB620946A (en) | Improvements in or relating to transformers | |
| GB670510A (en) | A method of and means for suppressing or reducing interference in radio receiving apparatus | |
| GB614607A (en) | Improved device for detecting the transmission of high-frequency electrical energy through a conductor | |
| GB947105A (en) | Improvements relating to electric transformers | |
| GB991971A (en) | Improvements in direction finding aerials |