txline。用于计算阻抗，很好用的小工具，可以计算微带线，同轴线等阻抗。

在使用ansoft等公司的微波仿真软件之前，需要计算出器件的尺寸等数据，TXline能够轻松直观的计算和展示出这些数据。

一款硬件pcb电路板的阻抗计算软件，非常适合初学者计算板子走线的50欧姆或者其他特性阻抗的计算。

To reduce the size of the TXLine files, no setup program is provided. However setting up the program is very simple. All the files extracted from the TXLINE.ZIP file need to be in the directory that the program will be executed from. If you want to create an icon for the program, then you need to manually add the program item through the Windows Program Manager (or through Explorer in Windows 95/98/NT/2000). Consult your Windows documentation for adding program icons to the Program Manager. Also, after the first time the program is ran, a file named txline.ini will be created in the directory the program is located in. This file saves the state the program was in when it was last used.

TXLine2003，用于RF Circuit Design