BE474943A - - Google Patents
Info
- Publication number
- BE474943A BE474943A BE474943DA BE474943A BE 474943 A BE474943 A BE 474943A BE 474943D A BE474943D A BE 474943DA BE 474943 A BE474943 A BE 474943A
- Authority
- BE
- Belgium
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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/38—Jamming means, e.g. producing false echoes
-
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US621577A US2471412A (en) | 1945-10-10 | 1945-10-10 | Frequency controlled direction finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474943A true BE474943A (cs) |
Family
ID=24490733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474943D BE474943A (cs) | 1945-10-10 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2471412A (cs) |
| BE (1) | BE474943A (cs) |
| ES (1) | ES176252A1 (cs) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2730614A (en) * | 1950-01-20 | 1956-01-10 | Stromberg Carlson Co | Automatic frequency control system |
| US2858422A (en) * | 1953-04-17 | 1958-10-28 | Gen Dynamics Corp | Frequency responsive system having two slope-tuned amplifiers with differential control of gain |
| US3077601A (en) * | 1958-01-30 | 1963-02-12 | Westinghouse Electric Corp | Signal selector circuit for passive detection apparatus |
| US3832711A (en) * | 1964-04-13 | 1974-08-27 | Raytheon Co | Guidance system |
| FR1605252A (cs) * | 1967-03-24 | 1973-11-02 | ||
| US3680125A (en) * | 1970-06-16 | 1972-07-25 | Itt | Angular modulation direction finding receiver |
| US4071845A (en) * | 1975-03-31 | 1978-01-31 | Raytheon Company | Harbor radio navigation system |
| FR2723206B1 (fr) * | 1984-12-26 | 1998-04-17 | Dassault Electronique | Recepteur de signaux electromagnetiques, avec identification et localisation de ces signaux |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB474771A (en) * | 1935-07-13 | 1937-11-08 | Cole E K Ltd | Arrangement for automatic tuning of radio receivers or the like |
| GB469077A (en) * | 1936-01-10 | 1937-07-12 | James Robinson | Improvements in or relating to wireless and like receivers |
| GB480289A (en) * | 1937-03-09 | 1938-02-21 | Cable & Wireless Ltd | Improvements relating to wireless telegraph systems |
| NL52079C (cs) * | 1937-06-11 |
-
0
- BE BE474943D patent/BE474943A/xx unknown
-
1945
- 1945-10-10 US US621577A patent/US2471412A/en not_active Expired - Lifetime
-
1946
- 1946-12-28 ES ES176252A patent/ES176252A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2471412A (en) | 1949-05-31 |
| ES176252A1 (es) | 1947-02-01 |