GB251984A - Improvements in or relating to radiogoniometers and circuits for use therewith - Google Patents
Improvements in or relating to radiogoniometers and circuits for use therewithInfo
- Publication number
- GB251984A GB251984A GB11532/26A GB1153226A GB251984A GB 251984 A GB251984 A GB 251984A GB 11532/26 A GB11532/26 A GB 11532/26A GB 1153226 A GB1153226 A GB 1153226A GB 251984 A GB251984 A GB 251984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- condenser
- valve
- resistance
- earthed
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
- G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Eye Examination Apparatus (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
251,984. Bellini, E. May 8, 1925, [Convention date]. Directive signalling; thermionic amplifiers and detectors. - In order to maintain symmetry in a loop aerial C tuned by a condenser B and earthed at its mid-point, the capacity and resistance of the gridfilament circuit of the receiving - valve H are balanced by the equal capacity and resistance of an auxiliary valve E, connected to the opposite side of the tuning-condenser. The auxiliary valve E may be idle or may have its output coil connected in series or in parallel with the output coil of the receiving-valve H. The auxiliary valve may be used for reacting by means of a coil D on a coil A connected across the tuning-condenser B. The coil A may be split and its two halves connected in the loop circuit on opposite sides of the condenser B. The reaction coil D mav be arranged to induce oscillations in the aerial for heterodyne reception. The valve filaments are earthed, and the mid-point of the loop is earthed through a resistance F. The Specification as open to inspection under Sect. 91 (3) (a) states that a condenser and a resistance may replace the auxiliary valve. This subject-matter does not appear in the Specification as accepted. Specification 217,585 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR442462X | 1925-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB251984A true GB251984A (en) | 1927-04-07 |
Family
ID=8900212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11532/26A Expired GB251984A (en) | 1925-05-08 | 1926-05-01 | Improvements in or relating to radiogoniometers and circuits for use therewith |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE442462C (en) |
| FR (1) | FR610443A (en) |
| GB (1) | GB251984A (en) |
| NL (1) | NL18344C (en) |
-
0
- NL NL18344D patent/NL18344C/xx active
-
1925
- 1925-05-08 FR FR610443D patent/FR610443A/en not_active Expired
-
1926
- 1926-04-25 DE DES74260D patent/DE442462C/en not_active Expired
- 1926-05-01 GB GB11532/26A patent/GB251984A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR610443A (en) | 1926-09-06 |
| NL18344C (en) | |
| DE442462C (en) | 1927-03-31 |
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