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1963年7月美国发射了“辛柯姆2号”卫星,这个卫星外形呈鼓形,重79磅,直径28吋,高15.5吋,在卫星的圆柱表面上总共分布着3840个硅太阳电池,电源的供电功率在27.5伏时最小为20瓦. 通信系统是一个倍频传输的有源转播系统.地面电台的输入信号(频率约为7400兆赫)送给两个接收机中的一个根据地面的命令来选择究竟送给哪一个.接收机的输出作为信号混合网络的输入,而信号混
In July 1963, the United States launched the “Sinkom 2” satellite, which was drum shaped, weighing 79 pounds, measuring 28 inches in diameter and 15.5 inches in height. A total of 3840 silicon solar cells were distributed on the satellite’s cylindrical surface, The power supply for a power supply is a minimum of 20 watts at 27.5 volts. The communication system is a multiply-transmitted active relaying system. The input signal of the terrestrial station (at a frequency of about 7400 MHz) is given to one of two receivers depending on the ground Command to choose which one to send to the receiver output as a signal mixed network input, and signal mixed