GB506630A - Improvements in or relating to directional radio receiver systems - Google Patents
Improvements in or relating to directional radio receiver systemsInfo
- Publication number
- GB506630A GB506630A GB36218/38A GB3621838A GB506630A GB 506630 A GB506630 A GB 506630A GB 36218/38 A GB36218/38 A GB 36218/38A GB 3621838 A GB3621838 A GB 3621838A GB 506630 A GB506630 A GB 506630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receivers
- dec
- voltages
- relating
- radio receiver
- 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
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
506,630. Directive wireless systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Dec 12, 1938, No. 36218. Convention date, Dec. 11, 1937. [Class 40 (v)] In a directional receiver in which voltages from two crossed frame aerials a, b are applied via separate receivers e, f, to two mutually perpendicular deflection systems k, m of e cathode-ray indicator n, the receivers or associated amplifiers are interchanged at a predetermined frequency by means of the synchronouslyoperated switches c, d and g, h. By this means any error due to change or unbalance of the receivers is avoided and it is even advantageous to employ receivers of different amplification. If the voltages from the frames a, b are not in phase, two angularly-displaced elliptical traces o, q, Fig. 3, are obtained; the line of intersection s giving the true direction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE506630X | 1937-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB506630A true GB506630A (en) | 1939-06-01 |
Family
ID=6546601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36218/38A Expired GB506630A (en) | 1937-12-11 | 1938-12-12 | Improvements in or relating to directional radio receiver systems |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2192581A (en) |
| FR (1) | FR847287A (en) |
| GB (1) | GB506630A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473491A (en) * | 1944-02-26 | 1949-06-14 | Hartford Nat Bank & Trust Co | Direction finding device |
| US2463286A (en) * | 1944-04-01 | 1949-03-01 | Frederick A Kolster | Radio direction finding system |
| US2517702A (en) * | 1944-11-03 | 1950-08-08 | Offner Franklin | Locating device |
| US2490777A (en) * | 1945-05-22 | 1949-12-13 | Herwil M Bryant | Indicator system |
| US2829365A (en) * | 1954-04-12 | 1958-04-01 | Telefunken Gmbh | Diode switching means |
| DE971912C (en) * | 1954-04-14 | 1959-04-16 | Telefunken Gmbh | Two-channel direction finder with comparison indicator |
-
1938
- 1938-12-09 FR FR847287D patent/FR847287A/en not_active Expired
- 1938-12-12 US US245265A patent/US2192581A/en not_active Expired - Lifetime
- 1938-12-12 GB GB36218/38A patent/GB506630A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR847287A (en) | 1939-10-05 |
| US2192581A (en) | 1940-03-05 |
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