GB225238A - Improvements in radiogoniometers - Google Patents
Improvements in radiogoniometersInfo
- Publication number
- GB225238A GB225238A GB28026/24A GB2802624A GB225238A GB 225238 A GB225238 A GB 225238A GB 28026/24 A GB28026/24 A GB 28026/24A GB 2802624 A GB2802624 A GB 2802624A GB 225238 A GB225238 A GB 225238A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerials
- curve
- potentiometer
- amplifier
- wires
- 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)
- Measuring Magnetic Variables (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
225,238. Bellini, E. Nov. 24, 1923, [Convention date]. Directive signalling. - Relates to directional apparatus particularly applicable in cases where the two main loop aerials are of different dimensions as in aircraft installations. Instead of using electromagnetic or electrostatic coupling between the fixed and moving parts of the radiogonometer, .the signal voltages from the main coils are applied to a high resistance or potentiometer, the points of maximum or minimum reception being indicated by a balancing pointer sliding over the potentiometer. As shown in Fig. 1, the frame aerials are connected to terminals 2 arranged at intervals of 90‹ on a circular high-resistance wire or graphite 1, and the balance point is indicated by two insulated pointers 3 connected to an amplifier and forming a diametral arm rotated by a button O. In Fig. 5 the high resistance consists of a suitable electrolyte 2 contained in a vessel 1. The frame aerials are connected to four fixed plates or wires 3, and the amplifier to two moving plates or wires 5. The voltage curve for a complete rotation of the arm 3, Fig. 1, is triangular as shown in Fig. 2, instead of sinusoidal, when the transmitting station is in the plane of one of the receiving frames. When the direction of transmission is inclined at an angle of 45‹ the characteristic curve is trapezoidal as shown in Fig. 3, and for other inclinations the curve is more or less deformed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR586109T | 1923-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB225238A true GB225238A (en) | 1925-02-12 |
Family
ID=8960491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28026/24A Expired GB225238A (en) | 1923-11-24 | 1924-11-22 | Improvements in radiogoniometers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1739941A (en) |
| FR (1) | FR586109A (en) |
| GB (1) | GB225238A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE951382C (en) * | 1934-11-20 | 1956-10-25 | Int Standard Electric Corp | Radio direction finder based on the Adcock principle |
| US2664507A (en) * | 1950-02-01 | 1953-12-29 | Rca Corp | Simplified electrically steerable antenna |
-
1923
- 1923-11-24 FR FR586109D patent/FR586109A/en not_active Expired
-
1924
- 1924-10-24 US US745551A patent/US1739941A/en not_active Expired - Lifetime
- 1924-11-22 GB GB28026/24A patent/GB225238A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1739941A (en) | 1929-12-17 |
| FR586109A (en) | 1925-03-16 |
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