FR925541A - Improvements to radio transmitters - Google Patents
Improvements to radio transmittersInfo
- Publication number
- FR925541A FR925541A FR925541DA FR925541A FR 925541 A FR925541 A FR 925541A FR 925541D A FR925541D A FR 925541DA FR 925541 A FR925541 A FR 925541A
- Authority
- FR
- France
- Prior art keywords
- radio transmitters
- transmitters
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US579170XA | 1942-04-13 | 1942-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR925541A true FR925541A (en) | 1947-09-05 |
Family
ID=22013532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR925541D Expired FR925541A (en) | 1942-04-13 | 1946-04-12 | Improvements to radio transmitters |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE466299A (en) |
CH (1) | CH254567A (en) |
FR (1) | FR925541A (en) |
GB (1) | GB579170A (en) |
-
0
- BE BE466299D patent/BE466299A/xx unknown
-
1943
- 1943-04-12 GB GB5873/43A patent/GB579170A/en not_active Expired
-
1946
- 1946-03-20 CH CH254567D patent/CH254567A/en unknown
- 1946-04-12 FR FR925541D patent/FR925541A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE466299A (en) | |
GB579170A (en) | 1946-07-25 |
CH254567A (en) | 1948-05-15 |
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