Free Crystal Radio Initiative Calculator for mobile If you found this calculator useful then you might find the downloadable Advanced Crystal Radio Initiative Calculator which includes more features even better! Click here to find out more. How To Use The Crystal Radio initiative Calculator Click here to go to the Free Crystal Radio initiative Calculator optimised for desktop screen sizes. [adinserter name=”Header”] [xyz-ihs snippet=”Free-CRI-2-0-Mobile”] Don’t know what the Crystal Radio Initiative is? Click here to find out more, or visit the official Crystal Radio Initiative forum discussion by clicking here.