iRFC - Radio Frequency Calculator - is an application dedicated to high frequency design engineers or to hobbyists (ham radio, CB, electronics geeks...) that always need to have in their pocket a powerful tool to design impedance adaptation networks.
iRFC is providing a Smith chart display of your network (frequency and characteristic impedance can be tuned). You can then chose the in and out impendance, and design your adaptation network.
The tuning of the vlaues can be manual or automatic: in this latter case, you will notice that you are also able to lock some predefined values.

!!! NEW: user manual available at http://f4hla.free.fr/iPhone/iRFC_user_manual_EN.pdf !!!