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) .

• 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