GB686760A - Improvements in or relating to two-way radio communication systems - Google Patents
Improvements in or relating to two-way radio communication systemsInfo
- Publication number
- GB686760A GB686760A GB21062/49A GB2106249A GB686760A GB 686760 A GB686760 A GB 686760A GB 21062/49 A GB21062/49 A GB 21062/49A GB 2106249 A GB2106249 A GB 2106249A GB 686760 A GB686760 A GB 686760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- frequency
- station
- transmitter
- repeater
- 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
- 239000013078 crystal Substances 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
- H04B17/405—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local multipliers, dividers, modulators
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radio Relay Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB290460X | 1949-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB686760A true GB686760A (en) | 1953-01-28 |
Family
ID=10285332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21062/49A Expired GB686760A (en) | 1949-08-12 | 1949-08-12 | Improvements in or relating to two-way radio communication systems |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH290460A (de) |
DE (1) | DE830677C (de) |
FR (1) | FR1023963A (de) |
GB (1) | GB686760A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE932072C (de) * | 1952-08-26 | 1955-08-22 | Siemens Ag | Funknetz mit mehreren Wirkungsbereichen und ortsbeweglichen Stationen |
BE568093A (de) * | 1957-05-28 | |||
DE1163407B (de) * | 1960-03-23 | 1964-02-20 | Siemens Ag | Anordnung zur drahtlosen UEbermittlung von Signalen, insbesondere Betriebswerten |
-
1949
- 1949-08-12 GB GB21062/49A patent/GB686760A/en not_active Expired
-
1950
- 1950-08-08 DE DEM5523A patent/DE830677C/de not_active Expired
- 1950-08-11 FR FR1023963D patent/FR1023963A/fr not_active Expired
- 1950-08-11 CH CH290460D patent/CH290460A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
DE830677C (de) | 1952-02-07 |
CH290460A (fr) | 1953-04-30 |
FR1023963A (fr) | 1953-03-26 |
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