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在一千兆赫以下的扫频图示仪中,目前广泛地采用所谓“菱形频标”以及“线频标”和“脉冲频标”作为显示屏幕上的 X 轴刻度,而后两种形状的频标是将菱形频标经过适当的电路加工而成,无论在屏幕上显示那种形状的频标,菱形频标发生器都是扫频图示仪中不可缺少的主要部件。本文着重介绍0.1—1000 MHz扫频图示仪中的菱形频标发生器,它能同时产生50 MHz、1 MHz、及10 MHz 三种菱形频标,将其中任意两种同时送入频标加工电路,能在屏幕上给出50 MHz 与10 MHz 或10 MHz与1 MHz 的组合频率刻度,为扫频测试提供了许多方便。对于同时产生三种菱形频标所
In the sweep graph below one gigahertz, so-called “diamond scale” and “line scale” and “pulse scale” are widely used as the X-axis scale on the display screen. The frequency of the latter two shapes Standard is the diamond frequency standard through the appropriate circuit processing made, no matter what kind of shape on the screen of the frequency standard, the diamond frequency standard generator is an indispensable main part of the sweep diagram. This article focuses on the 0.1-1000 MHz frequency sweep icon in the diamond frequency standard generator, which can produce 50 MHz, 1 MHz, and 10 MHz three kinds of diamond-shaped frequency standard at the same time, any two of them at the same time into the frequency standard processing The circuit, which gives a combined frequency scale of 50 MHz and 10 MHz or 10 MHz and 1 MHz on the screen, offers many conveniences for sweep testing. For the same time produce three kinds of diamond frequency standard