GB416126A - Improvements in wireless direction finding apparatus - Google Patents
Improvements in wireless direction finding apparatusInfo
- Publication number
- GB416126A GB416126A GB1167833A GB1167833A GB416126A GB 416126 A GB416126 A GB 416126A GB 1167833 A GB1167833 A GB 1167833A GB 1167833 A GB1167833 A GB 1167833A GB 416126 A GB416126 A GB 416126A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflected
- wave
- signal
- impulse
- class
- 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
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electrotherapy Devices (AREA)
Abstract
416,126. Directive wireless signalling. APPLETON, E. V., 30, Chesterford Gardens, Hampstead, London, BELL, L. H. BAINBRIDGE-, HERD, J. F., and WATT, R. A. W., Radio Research Station, Slough, Buckinghamshire. April 21, 1933, No. 11678. [Class 40 (v).] Relates to means for operating solely on the ground wave, to the exclusion of the reflected space - wave, when determining direction. Repeated impulses are transmitted for periods of one five-thousandth of a second separated by intervals sufficient to allow each signal and its reflected counterparts to be received before the arrival of the next signal-impulse. The critical minimum position can then be ascertained by observing the orientation point at which one impulse, i.e. that due to the direct wave is lost. Alternatively, the signals received by two frame aerials at right angles are applied to the control electrodes of a cathode-ray tube. The direct signal then produces a quasistationary " line " indication of the desired direction, the reflected signals being distinquished either as a stationary or variable, circular or elliptical pattern. Specifications 134,342, 252,263, [both in Class 40 (v)], and 397,524 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1167833A GB416126A (en) | 1933-04-21 | 1933-04-21 | Improvements in wireless direction finding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1167833A GB416126A (en) | 1933-04-21 | 1933-04-21 | Improvements in wireless direction finding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB416126A true GB416126A (en) | 1934-09-13 |
Family
ID=9990663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1167833A Expired GB416126A (en) | 1933-04-21 | 1933-04-21 | Improvements in wireless direction finding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB416126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416308A (en) * | 1943-07-20 | 1947-02-25 | Standard Telephones Cables Ltd | Radio receiver |
-
1933
- 1933-04-21 GB GB1167833A patent/GB416126A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416308A (en) * | 1943-07-20 | 1947-02-25 | Standard Telephones Cables Ltd | Radio receiver |
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