GB533185A - Improvements in radio beacons - Google Patents
Improvements in radio beaconsInfo
- Publication number
- GB533185A GB533185A GB2793339A GB2793339A GB533185A GB 533185 A GB533185 A GB 533185A GB 2793339 A GB2793339 A GB 2793339A GB 2793339 A GB2793339 A GB 2793339A GB 533185 A GB533185 A GB 533185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- varying
- marked
- periodically
- course
- radio
- 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)
- Mobile Radio Communication Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
533,185. Directive wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and SMITH, S. B. Oct. 14, 1939, No. 27933. [Class 40 (v)] In a radio-navigational system of the overlapping- beam type, the middle course is further narrowed in width by periodically' varying the directivity of the equi-signal area 8, Fig. 3, through a smaller angle #. The possible limits of deviation are thus reduced from the zig-zag course marked b to that marked a in Fig. 4. In a beacon transmitter in which only one beam is emitted at any instant, the desired effect is obtained by oscillating the aerial system mechanically through a small angle by means of an eccentric link and worm gearing. Alternatively the radiated beam may be periodically changed in direction by varying the phase of the high-frequency currents fed to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2793339A GB533185A (en) | 1939-10-14 | 1939-10-14 | Improvements in radio beacons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2793339A GB533185A (en) | 1939-10-14 | 1939-10-14 | Improvements in radio beacons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB533185A true GB533185A (en) | 1941-02-07 |
Family
ID=10267618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2793339A Expired GB533185A (en) | 1939-10-14 | 1939-10-14 | Improvements in radio beacons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB533185A (en) |
-
1939
- 1939-10-14 GB GB2793339A patent/GB533185A/en not_active Expired
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