GB937420A - Improvements relating to radio navigation - Google Patents
Improvements relating to radio navigationInfo
- Publication number
- GB937420A GB937420A GB3054260A GB3054260A GB937420A GB 937420 A GB937420 A GB 937420A GB 3054260 A GB3054260 A GB 3054260A GB 3054260 A GB3054260 A GB 3054260A GB 937420 A GB937420 A GB 937420A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ruler
- aerial
- chart
- pin
- protractor
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Support Of Aerials (AREA)
Abstract
937,420. Direction finders. M. G. G. ARCHIBALD. Sept. 22, 1961 [Sept. 5, 1960], No. 30542/60. Class 40 (7). Radio direction-finding apparatus for direct use on a chart, comprises a ruler 3, Fig. 4, provided with a locating pin 5 in line with its ruling edge 4 and coupled to a directional aerial 1, for rotation therewith relative to the chart, about the pin. In use, the north of the chart 7 is aligned with the actual north and the pin 5 is stuck in the chart at the location of the beacon which is being received. The aerial and ruler are rotated about the pin to detect a null point and a position line is drawn along the ruling edge. This procedure is repeated with two more beacons to produce a " cocked hat " fix. The aerial may be mounted for rotation externally of the chart room and be connected to the ruler by means of a flexible tube coupling (Fig. 5, not shown). In a second embodiment, Fig. 6, the aerial 30 is free to rotate relative to the ruler and is provided on its mounting with a pointer 32 moving over a scale formed on a protractor extension to the ruler and marked 0 to 360 degrees in an anticlockwise direction. In use the north of the chart is aligned with the axis of the vessel and the aerial is turned to detect a null point. Keeping the aerial still, the ruler and protractor are rotated until the pointer 32 indicates the vessel's heading on the scale. A position line is then drawn along the edge of the ruler. Alternatively the protractor may be mounted on the aerial with the graduations running clockwise, and with the pointer on the ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3054260A GB937420A (en) | 1960-09-05 | 1960-09-05 | Improvements relating to radio navigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3054260A GB937420A (en) | 1960-09-05 | 1960-09-05 | Improvements relating to radio navigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB937420A true GB937420A (en) | 1963-09-18 |
Family
ID=10309276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3054260A Expired GB937420A (en) | 1960-09-05 | 1960-09-05 | Improvements relating to radio navigation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB937420A (en) |
-
1960
- 1960-09-05 GB GB3054260A patent/GB937420A/en not_active Expired
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