开始20M，结束25M，测量21.6M BPF的曲线
Start 20M, the end of 25M, measurement of 21.6M BPF curve
将图标放在曲线峰顶，按一次+的结果
The icon on the curve peak, according to a + results
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将曲线放在峰顶，按2次+的结果
The curve on the summit, according to 2 + results
将曲线放在峰顶，按2次-的结果
The curve on the summit, according to 2 - results
如果有多个图标，选择以当前坐标为中心进行缩放操作。
If there is more than one icon, select the coordinates for the center of scaling
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operation.
2.4，频率标记设置
the frequency tag set
选择curse#中的1,2,3,4,5，每选择一个，就在显示图形上点一下鼠标左键，则图形区会显示一个倒三角的标记，在文本区，会显示对应的标记频率、幅度。该标记为频率标记。在图形上点右键，可删除单个或全部标记。
Select 1,2,3,4,5 curse#, select each, on display graphics click the left mouse button,the graphics area will display marked a inverted triangle, in the text area, will display the mark frequency, amplitude corresponding. The marked frequency marker. Right click on the graph, delete the single or all markers.
选择1-5号图标 Select the 1-5 Icon
显示的倒三角标记
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Inverted triangle mark displayed
屏幕显示的5个频标频率，信号强度
Frequency the frequency of 5 screen display, signal strength
2.5，Y轴缩放功能
Y axis scaling function
其中Ymax选择屏幕曲线最高位置显示的信号强度，一般选择20 Ymin选择屏幕曲线最低位置显示的信号强度，一般选择-90，
The Ymax signal intensity curve highest position display screen, the general selection 20
Ymin selection signal intensity curve shows the lowest position screen, generally choose -90,
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Y轴缩放功能 Y axis scaling function
利用该功能对曲线进行缩放，比如曲线在0dBM到-20dBm段显示不够清晰，可以选择Ymax为0，Ymin为-20进行缩放。注意，由于MCU的AD分辨率有限，放大后，曲线可能会出现阶梯的情况。
The scaling of the function, such as the curve in 0dBM to the -20dBm segment display is not clear, can choose Ymax for 0, Ymin for the -20 scaling. Note that,because of the limited resolution of MCU amplification of AD, post, curve may appearladder situation.
选择Ymax=20,Ymin=-90 Select Ymax=20, Ymin=-90
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