I do hope that you find the software on this page useful.
Lambda Calculator is suitable for those using pre Windows 10 software such as Windows XP, Vista, Win7 or Win8. It is free to use and can be installed from here: Lambda_Calc.zip
Lambda Calc screenshot
Quad design Screenshot.
Quad Design v.2.4 is an easy to use app that can be used to help in the design of a quad beam antenna.
It is available Here for free download.
QUADDesign_readme.txt - the readme file (instructions)
However, if you find this software useful please consider making a donation Here.
AntCalc v.2.1.1 screenshot
A basic antenna design calculator to help with various antenna types.
It is available for free download from HERE
RuleCheck small screen shot.
RuleCheck is a Windows 10 UWP App to convert between different units of length and from imperial to metric or visa versa. It can be downloaded and installed for free from HERE