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上行站系统工作的稳定对整个卫星发射系统有着重要的影响。本文讲述了数字卫星上行站概况,系统视音频通道技术参数;使用信号发生器、频谱分析仪、微波功率计等测试仪器对高功放中的输出功率增益、频率响应、输出频谱、杂散输出、三阶互调、相位噪声等指标测试方法,以提高我们对系统进行技术指标检测和维护水平。
The stability of the uplink system has an important impact on the entire satellite transmitting system. This article describes the overview of digital satellite uplink station, the system video and audio channel technical parameters; using signal generator, spectrum analyzer, microwave power meter and other test equipment on the high power amplifier output power gain, frequency response, output spectrum, spurious output, Third-order intermodulation, phase noise and other indicators of testing methods to improve our system for testing and maintenance of technical indicators.