1)   RF ToolBox 3.2.0 Takes you step by step through the design of these antennas: Dipole Fat Dipole Yagi J-Pole Super J-Pole Log Periodic Cubic Quad Vertical Helical. Also performs various transmission line and network calculations. 2)   AxGC 2D Graphical ActiveX Control 3.7 AxGC (v 3.7) ActiveX Control is interactive 2D graphical tool for developing scientific and mathematical software. It features: dynamic scaling graphics, polynomial fitting, simple 2D-animation, built-in inner JScript and VBScript interpreter. 3)   RF ToolBox 3.2.0 Takes you step by step through the design of these antennas: Dipole Fat Dipole Yagi J-Pole Super J-Pole Log Periodic Cubic Quad Vertical Helical. Also performs various transmission line and network calculations.