BE380689A - - Google Patents
Info
- Publication number
- BE380689A BE380689A BE380689DA BE380689A BE 380689 A BE380689 A BE 380689A BE 380689D A BE380689D A BE 380689DA BE 380689 A BE380689 A BE 380689A
- 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
- 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
- G01S1/022—Means for monitoring or calibrating
- G01S1/024—Means for monitoring or calibrating of beacon transmitters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Selective Calling Equipment (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE380689X | 1931-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380689A true BE380689A (de) |
Family
ID=6348732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380689D BE380689A (de) | 1931-02-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1953239A (de) |
| BE (1) | BE380689A (de) |
| FR (1) | FR730663A (de) |
| GB (1) | GB380689A (de) |
-
0
- BE BE380689D patent/BE380689A/xx unknown
-
1932
- 1932-01-20 GB GB1779/32A patent/GB380689A/en not_active Expired
- 1932-01-28 FR FR730663D patent/FR730663A/fr not_active Expired
- 1932-02-11 US US592216A patent/US1953239A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR730663A (fr) | 1932-08-19 |
| GB380689A (en) | 1932-09-22 |
| US1953239A (en) | 1934-04-03 |