CH499840A - Transmitter with directional antenna - Google Patents
Transmitter with directional antennaInfo
- Publication number
- CH499840A CH499840A CH1670169A CH1670169A CH499840A CH 499840 A CH499840 A CH 499840A CH 1670169 A CH1670169 A CH 1670169A CH 1670169 A CH1670169 A CH 1670169A CH 499840 A CH499840 A CH 499840A
- Authority
- CH
- Switzerland
- Prior art keywords
- transmitter
- directional antenna
- directional
- antenna
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77536068A | 1968-11-13 | 1968-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH499840A true CH499840A (en) | 1970-11-30 |
Family
ID=25104156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1670169A CH499840A (en) | 1968-11-13 | 1969-11-10 | Transmitter with directional antenna |
Country Status (6)
Country | Link |
---|---|
US (1) | US3521281A (en) |
CH (1) | CH499840A (en) |
DE (1) | DE1956311A1 (en) |
FR (1) | FR2023173A1 (en) |
GB (1) | GB1258996A (en) |
NL (1) | NL6916849A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19756364A1 (en) * | 1997-12-18 | 1999-06-24 | Cit Alcatel | Monitoring localizer course system in aircraft landing system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1171575B (en) * | 1981-10-06 | 1987-06-10 | Selenia Ind Elettroniche | IMPROVEMENT IN RADAR SYSTEMS OF THE TYPE A RESPONSE IN PARTICULAR OF THE SSR TYPE |
DE202009006912U1 (en) | 2009-05-13 | 2010-04-22 | Hera Gmbh & Co. Kg | Reflector on fluorescent tube |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2412703A (en) * | 1941-08-29 | 1946-12-17 | Rca Corp | Radio locator device |
US3230348A (en) * | 1951-09-01 | 1966-01-18 | Sperry Rand Corp | Missile guidance system |
US3095538A (en) * | 1960-10-28 | 1963-06-25 | Silberstein Richard | Satellite relay station using antenna diversity selection |
US3336591A (en) * | 1964-12-21 | 1967-08-15 | Sierra Research Corp | One-way range and azimuth system for stationkeeping |
-
1968
- 1968-11-13 US US775360A patent/US3521281A/en not_active Expired - Lifetime
-
1969
- 1969-11-07 NL NL6916849A patent/NL6916849A/xx unknown
- 1969-11-07 FR FR6938329A patent/FR2023173A1/fr not_active Withdrawn
- 1969-11-08 DE DE19691956311 patent/DE1956311A1/en active Pending
- 1969-11-10 CH CH1670169A patent/CH499840A/en not_active IP Right Cessation
- 1969-11-13 GB GB1258996D patent/GB1258996A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19756364A1 (en) * | 1997-12-18 | 1999-06-24 | Cit Alcatel | Monitoring localizer course system in aircraft landing system |
Also Published As
Publication number | Publication date |
---|---|
FR2023173A1 (en) | 1970-08-07 |
DE1956311A1 (en) | 1970-05-27 |
NL6916849A (en) | 1970-05-15 |
GB1258996A (en) | 1972-01-05 |
US3521281A (en) | 1970-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |