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在调试一般接收机和频带放大器时,以调试其频率特性为最麻烦.特别是在频率响应曲线的形状很复杂的情况下(如多级参差调谐的频带放大器),用一般逐点测试的方法简直不可能,不仅费时、不准确,而且很难把频率响应曲线调到所需要的形状.因此,目前都广泛用扫频器来进行调试,这种方法的显著优点是:调试迅速、准确,并富有直观性.
When debugging a general receiver and a band amplifier, it is troublesome to debug the frequency characteristics, especially when the shape of the frequency response curve is complicated (for example, a multi-level band-gap tuning tuned frequency band amplifier) It is impossible, not only time-consuming, inaccurate, but also difficult to tune the frequency response curve to the desired shape.Therefore, the sweeping device is widely used to carry out debugging, the obvious advantages of this method are: debugging quickly, accurately, And intuitive.