Cantennator

Cantennator is a lightweight Windows program built specifically for helping users calculate the ideal dimensions for cantennas, which are usually used for improving the range of Wi-Fi networks.
The tool boasts a clean and simple layout that offers only a few configuration settings to tinker with.
Cantennator gives users the possibility to specify the can diameter and with just one click on the “Calculate” button, the application provides useful data about the ideal can length and calculates the distance where you can drill the hole for the connector.
By default, the application performs the calculations in millimetres, so you cannot pick the measurement unit.
What’s more, the utility lets you view a graphical representation of the cantenna parameters and other useful data that could help you calculate an optimal cantenna length.
Since there aren’t any configuration settings, even rookies can set up the entire operation with minimum effort. However, advanced users may find pretty inconvenient to work with a program that doesn’t come packed with advanced features.
On the downside, it hasn’t been updated for a while, so it may cause compatibility issues on newer operating systems.
To sum things up, Cantennator makes the entire process seem nothing but a piece of cake. This small calculator seems to be the right choice for users who are looking for an easy-to-use tool without any configuration settings. It comes in handy in case you intend to build a cantenna for boosting your Wi-Fi signal, increase cell phone range, decrease noise, or use it with other RF devices (e.g. wireless security cameras).