GB504616A - Improvements in or relating to radio receiving systems - Google Patents
Improvements in or relating to radio receiving systemsInfo
- Publication number
- GB504616A GB504616A GB25945/37A GB2594537A GB504616A GB 504616 A GB504616 A GB 504616A GB 25945/37 A GB25945/37 A GB 25945/37A GB 2594537 A GB2594537 A GB 2594537A GB 504616 A GB504616 A GB 504616A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplifiers
- antennae
- transformers
- coupled
- range
- 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
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
- H03H7/482—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source particularly adapted for use in common antenna systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
504,616. Distributing music; aerials; transformers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 24, 1937, No. 25945. Convention date, Sept. 24, 1936. [Class 40 (iv)] [Also in Groups XXXV and XL] An antenna system comprising a number of separate antennae each of which deals with a particular part of the range to be covered is coupled through amplifiers to a common circuit feeding a number of all-wave receivers. As shown in Fig. 3, the antennae are carried by a common support, those pertaining to adjacent ranges being as far apart as possible. The shorter wavelength ranges are dealt with by di-poles, the longer by T & L antennae 129, 128, the effective capacities of which are increased by connections to the supporting wires of adjacent antennae. The amplifiers for the high frequency ranges have band-pass transformers the windings of which are tuned by adjustment of individual cores of magnetite. A single antenna deals with the normal broadcast range and is coupled to separate amplifiers 93, 95, 97 dealing with different parts of the range over a circuit 51 to which are coupled attenuating circuits 53 tuned to the frequencies of powerful stations to prevent overloading of the amplifiers. The common circuit 45 is associated with resistances 117 across which the individual receivers are connected by a pyramidal arrangement of bifilar transformers. The fourth transformer 113 may be replaced as shown by a resistance 114. Specification 477,890 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US102286A US2151081A (en) | 1936-09-24 | 1936-09-24 | Multiplex receiving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB504616A true GB504616A (en) | 1939-04-24 |
Family
ID=22289084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25945/37A Expired GB504616A (en) | 1936-09-24 | 1937-09-24 | Improvements in or relating to radio receiving systems |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2151081A (en) |
| BE (1) | BE423746A (en) |
| GB (1) | GB504616A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735988A (en) * | 1956-02-21 | fyler | ||
| GB620507A (en) * | 1945-08-24 | 1949-03-25 | William Joseph O Brien | Improvements in or relating to phase discriminator circuits |
| US2631238A (en) * | 1949-02-16 | 1953-03-10 | Belmont Radio Corp | Antenna array |
| US2801295A (en) * | 1951-04-23 | 1957-07-30 | Donald R Trilling | Multi-channel repeater and amplifier system |
| US2738464A (en) * | 1951-07-09 | 1956-03-13 | Rca Corp | Voltage divider network |
| US2843828A (en) * | 1951-10-18 | 1958-07-15 | Avco Mfg Corp | Ultra-high-frequency converter for very-high-frequency television receiver |
| US2761022A (en) * | 1952-07-26 | 1956-08-28 | Ben H Tongue | Amplifier system |
| US2761135A (en) * | 1952-07-26 | 1956-08-28 | Ben H Tongue | Multi-signal electric system |
-
0
- BE BE423746D patent/BE423746A/xx unknown
-
1936
- 1936-09-24 US US102286A patent/US2151081A/en not_active Expired - Lifetime
-
1937
- 1937-09-24 GB GB25945/37A patent/GB504616A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE423746A (en) | |
| US2151081A (en) | 1939-03-21 |
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