发明名称 |
Nachrichtenuebertragungssystem |
摘要 |
A communications system uses a central relay station suspended from a balloon to transmit from one ground based unit to another. The central station is suspended from a balloon at an approximate height of 100m. A parabolic reflector and a rotating directional antenna serve for signal transmission and reception. The balloon is cable connected to a truck providing electrical power. The directional antenna emits call signals in coded binary form to identify each 2-5 degrees of position. If one station wishes to establish contact with another, the central unit receives signals during the time the directional antenna is in the sector and re-transmits. Similar connections may be established between any two stations within the operating range. |
申请公布号 |
DE1923744(A1) |
申请公布日期 |
1970.11.12 |
申请号 |
DE19691923744 |
申请日期 |
1969.05.09 |
申请人 |
SIEMENS AG |
发明人 |
HANS-MARTIN CHRISTIANSEN,DIPL.-ING.;HANNI,MANFRED |
分类号 |
H04B7/185;H04B7/204 |
主分类号 |
H04B7/185 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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