GB505405A - Improvements in radio direction finding apparatus - Google Patents
Improvements in radio direction finding apparatusInfo
- Publication number
- GB505405A GB505405A GB16527/38A GB1652738A GB505405A GB 505405 A GB505405 A GB 505405A GB 16527/38 A GB16527/38 A GB 16527/38A GB 1652738 A GB1652738 A GB 1652738A GB 505405 A GB505405 A GB 505405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indicators
- coil
- frame
- sense switch
- june
- 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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Electromechanical Clocks (AREA)
Abstract
505,405. Directive wireless systems. LORENZ AKT.-GES., C. June 2, 1938, No. 16527. Convention date, June 2, 1937. [Class 40 (v)] If the site error in a rotary frame or gonio. meter direction-finder is asymmetric, the two minima of the figure-eight pick-up characteristic may not be exactly displaced by 180‹; according to the invention in such a 'system two opposite indications corresponding to the direction of the transmitter and the opposite direction are provided; each being automatically compensated for site error. As shown in the Figure, the two indicators 5, 6 are rotated with the hand wheel 1 by means of the rods 11, 13 which are slidable in the guides 14-17 mounted on the casing 2 connected to the hand wheel 1, and the reading of the indicators is corrected by the movement of the rods 10 and 12 against the fixed cam 7. In order to avoid a further rotation of the frame aerial or goniometer coil in the determination of the sense, an auxiliary frame or coil is provided in a known manner at rightangles to the main frame or coil and is connected to the receiver and coupled in phase and in counterphase with an open aerial by means of the sense switch. The two positions of the sense switch and the two indicators are given corresponding colour markings and the position of the sense switch giving minimum sound shows which of the two indicators gives the required bearing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207220X | 1937-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB505405A true GB505405A (en) | 1939-05-10 |
Family
ID=5793599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16527/38A Expired GB505405A (en) | 1937-06-02 | 1938-06-02 | Improvements in radio direction finding apparatus |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH207220A (en) |
| FR (1) | FR838775A (en) |
| GB (1) | GB505405A (en) |
| NL (1) | NL49886C (en) |
-
0
- NL NL49886D patent/NL49886C/xx active
-
1938
- 1938-05-31 CH CH207220D patent/CH207220A/en unknown
- 1938-06-01 FR FR838775D patent/FR838775A/en not_active Expired
- 1938-06-02 GB GB16527/38A patent/GB505405A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL49886C (en) | |
| CH207220A (en) | 1939-10-15 |
| FR838775A (en) | 1939-03-15 |
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