BE385620A - - Google Patents
Info
- Publication number
- BE385620A BE385620A BE385620DA BE385620A BE 385620 A BE385620 A BE 385620A BE 385620D A BE385620D A BE 385620DA BE 385620 A BE385620 A BE 385620A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- transmitter
- site
- azimuth
- index
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic 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)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR731833T | 1931-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE385620A true BE385620A (xx) |
Family
ID=9119648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE385620D BE385620A (xx) | 1931-04-08 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE385620A (xx) |
| FR (1) | FR731833A (xx) |
-
0
- BE BE385620D patent/BE385620A/fr unknown
-
1931
- 1931-04-08 FR FR731833D patent/FR731833A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR731833A (fr) | 1932-09-08 |
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