CH214204A - Procedure for keying directional transmitters. - Google Patents
Procedure for keying directional transmitters.Info
- Publication number
- CH214204A CH214204A CH214204DA CH214204A CH 214204 A CH214204 A CH 214204A CH 214204D A CH214204D A CH 214204DA CH 214204 A CH214204 A CH 214204A
- Authority
- CH
- Switzerland
- Prior art keywords
- keying
- procedure
- directional transmitters
- transmitters
- directional
- Prior art date
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)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE214204X | 1938-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH214204A true CH214204A (en) | 1941-04-15 |
Family
ID=5817441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH214204D CH214204A (en) | 1938-03-23 | 1939-03-03 | Procedure for keying directional transmitters. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2241918A (en) |
CH (1) | CH214204A (en) |
FR (1) | FR851533A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR986979A (en) * | 1943-12-20 | 1951-08-07 | Sadir Carpentier | Radio guidance system |
US2510299A (en) * | 1945-01-01 | 1950-06-06 | Bell Telephone Labor Inc | Pulse-echo testing system |
BE475119A (en) * | 1946-02-05 | |||
US2659819A (en) * | 1949-02-15 | 1953-11-17 | Marconi Wireless Telegraph Co | Aerial system |
-
1939
- 1939-03-03 CH CH214204D patent/CH214204A/en unknown
- 1939-03-13 FR FR851533D patent/FR851533A/en not_active Expired
- 1939-03-14 US US261709A patent/US2241918A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR851533A (en) | 1940-01-10 |
US2241918A (en) | 1941-05-13 |
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