FR979439A - Improvements to direction finders - Google Patents
Improvements to direction findersInfo
- Publication number
- FR979439A FR979439A FR979439DA FR979439A FR 979439 A FR979439 A FR 979439A FR 979439D A FR979439D A FR 979439DA FR 979439 A FR979439 A FR 979439A
- Authority
- FR
- France
- Prior art keywords
- direction finders
- finders
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Mobile Radio Communication Systems (AREA)
- Near-Field Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6817/48A GB648713A (en) | 1948-03-04 | 1948-03-04 | Improvements in or relating to radio direction finders |
Publications (1)
Publication Number | Publication Date |
---|---|
FR979439A true FR979439A (en) | 1951-04-26 |
Family
ID=9821292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR979439D Expired FR979439A (en) | 1948-03-04 | 1949-01-25 | Improvements to direction finders |
Country Status (4)
Country | Link |
---|---|
US (1) | US2605465A (en) |
DE (1) | DE862030C (en) |
FR (1) | FR979439A (en) |
GB (1) | GB648713A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2762002A (en) * | 1952-05-29 | 1956-09-04 | Bendix Aviat Corp | Power amplifier for servo mechanisms |
US2724115A (en) * | 1952-09-25 | 1955-11-15 | Collins Radio Co | Tracking system |
US2820963A (en) * | 1953-11-27 | 1958-01-21 | Aircraft Specialty Lines | Radio direction finding circuit |
US2968035A (en) * | 1956-01-26 | 1961-01-10 | Janis A Sirons | Radio compass |
US3534368A (en) * | 1968-09-16 | 1970-10-13 | Electro Technical Analysis Cor | Dual mode automatic direction finders |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2054160A (en) * | 1931-07-16 | 1936-09-15 | Telefunken Gmbh | Directional receiver |
US2360810A (en) * | 1938-03-19 | 1944-10-17 | Rca Corp | Self-orienting radio direction finder |
US2216708A (en) * | 1938-11-19 | 1940-10-01 | Frederick A Kolster | Directional radio system |
US2276235A (en) * | 1939-10-23 | 1942-03-10 | Weston Electrical Instr Corp | Radio compass |
US2279021A (en) * | 1939-11-30 | 1942-04-07 | Rca Corp | Directional receiver |
US2310052A (en) * | 1940-10-16 | 1943-02-02 | Westinghouse Electric & Mfg Co | Radio direction finding system |
-
1948
- 1948-03-04 GB GB6817/48A patent/GB648713A/en not_active Expired
-
1949
- 1949-01-25 FR FR979439D patent/FR979439A/en not_active Expired
- 1949-01-28 DE DEP32628A patent/DE862030C/en not_active Expired
- 1949-02-23 US US77922A patent/US2605465A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB648713A (en) | 1951-01-10 |
DE862030C (en) | 1953-01-08 |
US2605465A (en) | 1952-07-29 |
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