GB508139A - Improvements in or relating to radio direction finders - Google Patents
Improvements in or relating to radio direction findersInfo
- Publication number
- GB508139A GB508139A GB18840/38A GB1884038A GB508139A GB 508139 A GB508139 A GB 508139A GB 18840/38 A GB18840/38 A GB 18840/38A GB 1884038 A GB1884038 A GB 1884038A GB 508139 A GB508139 A GB 508139A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- radio direction
- direction finders
- finders
- 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)
- Optical Communication System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE212658X | 1937-06-24 | ||
DE260637X | 1937-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB508139A true GB508139A (en) | 1939-06-27 |
Family
ID=25761190
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16597/38A Expired GB494564A (en) | 1937-06-24 | 1938-06-02 | Improvements in or relating to direction finding radio receivers |
GB18840/38A Expired GB508139A (en) | 1937-06-24 | 1938-06-24 | Improvements in or relating to radio direction finders |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16597/38A Expired GB494564A (en) | 1937-06-24 | 1938-06-02 | Improvements in or relating to direction finding radio receivers |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH212658A (en) |
FR (1) | FR839554A (en) |
GB (2) | GB494564A (en) |
NL (1) | NL51913C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003148A (en) * | 1957-10-14 | 1961-10-03 | Koden Seisakusha Kk | Direction indicating device |
-
0
- NL NL51913D patent/NL51913C/xx active
-
1938
- 1938-06-02 GB GB16597/38A patent/GB494564A/en not_active Expired
- 1938-06-15 CH CH212658D patent/CH212658A/en unknown
- 1938-06-21 FR FR839554D patent/FR839554A/en not_active Expired
- 1938-06-24 GB GB18840/38A patent/GB508139A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003148A (en) * | 1957-10-14 | 1961-10-03 | Koden Seisakusha Kk | Direction indicating device |
Also Published As
Publication number | Publication date |
---|---|
FR839554A (en) | 1939-04-06 |
GB494564A (en) | 1938-10-27 |
CH212658A (en) | 1940-12-15 |
NL51913C (en) |
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