说明： 简易信号源，简易频谱。可作宽带信号源、宽带扫频信号源、宽带简易频谱使用，配合噪音源可做跟踪源，可测量滤波器、天线等器件的参数。 (Simple signal source, simple spectrum. It can be used as wideband signal source, wideband sweep signal source and broadband simple spectrum. It can be used as tracking source with noise source, and can measure the parameters of filter and antenna.)
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