GB436839A - Radio receiving arrangements particularly suitable for use with radio beacons - Google Patents
Radio receiving arrangements particularly suitable for use with radio beaconsInfo
- Publication number
- GB436839A GB436839A GB8159/35A GB815935A GB436839A GB 436839 A GB436839 A GB 436839A GB 8159/35 A GB8159/35 A GB 8159/35A GB 815935 A GB815935 A GB 815935A GB 436839 A GB436839 A GB 436839A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- rectified
- signals
- marker
- metre
- 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
- 239000003550 marker Substances 0.000 abstract 4
- 238000009499 grossing Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
-
- 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)
- Circuits Of Receivers In General (AREA)
- Traffic Control Systems (AREA)
Abstract
436,839. Directive wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. March 15, 1935, No. 8159. Convention date, Aug. 14, 1934. [Class 40 (v)] Relates to the circuits used for receiving course-marking signals say on 7 metres, and other signals say on 3 metres, in aircraft navigation. According to the invention, both signals are fed to a common low-frequency stage of the receiver, and one only of the rectified signals, namely the marker signal, is used to apply automatic gain control to that signal. The marker signal is received on the aerial A and is rectified at G1. The 3-metre signal is received on the aerial D and is rectified at G2, and combined with the first signal in the input to the low-frequency amplifier N1. The output of the following stage N2 comprises a filter circuit 6, 3, 4, 5 tuned to the note frequency of the 3-metre signal, so that this is filtered out to a separate indicator, whilst the note frequency of the marker or 7-metre wave is filtered out by the circuits 7... 10, and passes to an indicator J. Part of the lowfrequency output from the transformer 11 is rectified at 12 and, after smoothing, is fed back to control the gain of the detector G1 as the distance of the craft from the course-marker beacon alters.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE436839X | 1934-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB436839A true GB436839A (en) | 1935-10-18 |
Family
ID=6506961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8159/35A Expired GB436839A (en) | 1934-08-14 | 1935-03-15 | Radio receiving arrangements particularly suitable for use with radio beacons |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2105534A (en) |
| GB (1) | GB436839A (en) |
| NL (1) | NL42313C (en) |
-
0
- NL NL42313D patent/NL42313C/xx active
-
1935
- 1935-03-15 GB GB8159/35A patent/GB436839A/en not_active Expired
- 1935-05-24 US US23169A patent/US2105534A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL42313C (en) | |
| US2105534A (en) | 1938-01-18 |
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