Hello and welcome to the BZF radio frequency test! Nice that you found your way here. With this app you learn quickly and efficiently for the BZF certificates and you also have the official exam questions ready to be optimally prepared! In this way you can minimize the time in which you have to deal with the theory so that you get the spark as quickly as possible. Regardless of which aircraft you are on, a BZF certificate is often required to use the radio. This app is made so that you can pas