通信转发器(communications transponder)是将地球站（或飞行器）发来的通信信号经过变频 、放大后再发向其他地球站（或飞行器）的无线电电子设备。通信转发器常装于通信卫星上，实现通信中继站的功能。
由中国空间技术研究院开发研制的“鑫诺二号”通信卫星重约5.1吨，星上载有22个转发器。
SinoSat-2, mainly developed and manufactured by the Chinese Academy of Space Technology, weighs about 5.1 tons and has 22 transponders.
该射程可以通过使用SELEX通信的转发器无线电台(电台继电器)来扩大。
This range can be extended by using SELEX Communications' Repeater Radio Units (Radio Relay).
对透明转发器卫星通信系统，干扰的有效功率必须大于所有用户的总功率，宽带干扰或梳状谱干扰是较好的干扰方式。
For satellite communications system with a transparent transponder, the effective jammer power must be larger than the total power of all t...
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