Through testing, its noise figure is 5.5dB, mixing gain is 5dB, its image frequency rejection adds up to 19dB, which all meet the requirements for the system (NF=7.5dB, Gain=3dB) .
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释义
经测试,该接收机前端的噪声系数为5.;5dB,变频增益为5dB,镜频抑制度为19dBc,均超过了系统要求的指标(噪声系数7
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