GB130490A - Improvements in Means for Determining the Direction of a Distant Source of Electro-magnetic Radiation. - Google Patents
Improvements in Means for Determining the Direction of a Distant Source of Electro-magnetic Radiation.Info
- Publication number
- GB130490A GB130490A GB1353618A GB1353618A GB130490A GB 130490 A GB130490 A GB 130490A GB 1353618 A GB1353618 A GB 1353618A GB 1353618 A GB1353618 A GB 1353618A GB 130490 A GB130490 A GB 130490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerials
- determining
- leads
- radiogoniometer
- radiation
- 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
- 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
- G01S3/04—Details
- G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Selective Calling Equipment (AREA)
Abstract
130,490. Ellis, R. E., (Adcock, F.). Aug. 20, 1918. Bearings, determining wirelessly; directive wireless signalling; acrials.-In means for determining the bearing of a transmitting station, the aerials are arranged with a vertical component, to receive the radiation, the horizontal component being arranged so that the effect upon it of the radiation is reduced to a minimum. Fig. 1 illustrates the principle on which the invention is based. The leads E, F and G, H from the vertical aerial AB to the coil CD of the radiogoniometer or other receiving instrument are placed close together and may be twisted together so as to be jointly non-receptive to radiation falling upon them. Fig. 3 shows one method of connecting pairs of aerials 11, 15 and 6, 7 to the coils 5, 10 of a radiogoniometer in a station for determining bearings. The leads 13, 18 from the aerials 11, 15 pass near the ground to the earths 16, 12 of the other aerial of the pair, and these leads are placed close together, or twisted together as already explained. Instead of earthing the aerials they may be unearthed, the leads to the radiogoniometer passing from their mid-points. The pairs of aerials may be made rotata.ble.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1353618A GB130490A (en) | 1918-08-20 | 1918-08-20 | Improvements in Means for Determining the Direction of a Distant Source of Electro-magnetic Radiation. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1353618A GB130490A (en) | 1918-08-20 | 1918-08-20 | Improvements in Means for Determining the Direction of a Distant Source of Electro-magnetic Radiation. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB130490A true GB130490A (en) | 1919-08-07 |
Family
ID=32346048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1353618A Expired GB130490A (en) | 1918-08-20 | 1918-08-20 | Improvements in Means for Determining the Direction of a Distant Source of Electro-magnetic Radiation. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB130490A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422026A (en) * | 1943-07-28 | 1947-06-10 | Rca Corp | Radio direction finding |
US6697017B1 (en) | 1999-11-08 | 2004-02-24 | Rafael-Armament Development Authority Ltd. | All digital apparatus for bearing measurement of electromagnetic sources |
-
1918
- 1918-08-20 GB GB1353618A patent/GB130490A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422026A (en) * | 1943-07-28 | 1947-06-10 | Rca Corp | Radio direction finding |
US6697017B1 (en) | 1999-11-08 | 2004-02-24 | Rafael-Armament Development Authority Ltd. | All digital apparatus for bearing measurement of electromagnetic sources |
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