混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
道上车辆船舶和设备上用接收机保护的无线电干扰特性。限值和测量方法。有源天线规范。
Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - limits and methods of measurement - specifications for active antennas.
道上车辆船舶和设备上用接收机保护的无线电干扰特性。限值和测量方法。有源天线规范。
Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - limits and methods of measurement - specification s for active antennas.
道上车辆船舶和设备上用接收机保护的无线电干扰特性。限值和测量方法。有源天线规范。
Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices - limits and methods of measurement - specification s for active antennas.
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