JPS6461137A - Microwave band communication system - Google Patents
Microwave band communication systemInfo
- Publication number
- JPS6461137A JPS6461137A JP21880887A JP21880887A JPS6461137A JP S6461137 A JPS6461137 A JP S6461137A JP 21880887 A JP21880887 A JP 21880887A JP 21880887 A JP21880887 A JP 21880887A JP S6461137 A JPS6461137 A JP S6461137A
- Authority
- JP
- Japan
- Prior art keywords
- radio
- subscriber
- band
- communication system
- line
- 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.)
- Pending
Links
Abstract
PURPOSE:To accommodate newly a subscriber radio system by positioning a frequency arrangement of a large capacity basic line system, in co-channel arrangement generating a frequency band not in use in the basic line system, and opening the band for a short distance communication system such as subscriber radio line. CONSTITUTION:Eight waves 10, 11, 12, 13, 14, 15, 16, 17 are signal spectrums for a radio relay system using multi-channel at regular intervals with co-channel arrangement. On the other hand, 6 slots of 20, 21, 22, 23, 24, 25 are bands not used by the relay system entirely and the spectrum of subscriber radio system of a shortdistance operated by using the band is shown. Thus, the expansion of demand is remarkable and the use of the frequency band used by the large capacity base line is allowed for the radio subscriber system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21880887A JPS6461137A (en) | 1987-08-31 | 1987-08-31 | Microwave band communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21880887A JPS6461137A (en) | 1987-08-31 | 1987-08-31 | Microwave band communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6461137A true JPS6461137A (en) | 1989-03-08 |
Family
ID=16725666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21880887A Pending JPS6461137A (en) | 1987-08-31 | 1987-08-31 | Microwave band communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6461137A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04246941A (en) * | 1991-01-31 | 1992-09-02 | Nec Corp | Both polarized wave transmission system |
-
1987
- 1987-08-31 JP JP21880887A patent/JPS6461137A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04246941A (en) * | 1991-01-31 | 1992-09-02 | Nec Corp | Both polarized wave transmission system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2178616B (en) | Impedance matching arrangement | |
CA1035428A (en) | Multiple frequency band receiver tuner system using single, non-bandswitched local oscillator | |
GB8706722D0 (en) | Radio frequency combiner | |
DE3363259D1 (en) | Frequency hopping radiocommunication system | |
AU575131B2 (en) | Tdm cellular radio communications | |
IL60012A (en) | Radio frequency spectrum analyzer | |
AU556869B2 (en) | Stabilized high efficiency radio frequency amplifier | |
GB2160024B (en) | Radio frequency power divider-combiner networks | |
NO883572D0 (en) | QUICK TUNING INDUCTOR FOR RADIO FREQUENCY NETWORKS. | |
GB2189081B (en) | Broad band antenna | |
AU4374779A (en) | Multi band radio receiver system | |
IL58902A (en) | Broad band,small size monopole-transmission line antenna for radio frequencies | |
JPS57107649A (en) | Radio frequency communication system | |
AU4646579A (en) | Frequency selector tuning means | |
JPS6461137A (en) | Microwave band communication system | |
DE3566338D1 (en) | Improvements in multicoupler systems | |
GB2223361B (en) | Radio frequency combiner | |
JPS5325309A (en) | Radio call unit | |
DE3165806D1 (en) | High frequency multimode feed, and antenna comprising such a feed | |
GB2103052B (en) | Radio receivers for use on frequency hopping networks | |
JPS54152447A (en) | Very high frequency receiving antenna | |
GB8428159D0 (en) | Radio frequency synthesis | |
GB8821687D0 (en) | Radio frequency spectrum analyser | |
JPS5624805A (en) | Active ultrahigh frequency wave antanna for movable ratio receiver | |
GB8513808D0 (en) | Multi-port radio frequency networks |