[Brmlab] help me

Hello, first I want to apologize because I do not speak any English and am forced to use a translator. My name is Gregor, I am French and am a radio enthusiast for over 30 years. I look for people who could point me to the TETRAPOL decoding. I already decode the Tetra . Tetrapol I downloaded the kit but no instructions are given to make it work so I do not know what to do. If you could at least give me a place on the net or I might have more information, I seraiz so grateful you .J 'hope very much that you will answer me.My email is : gh94430@hotmail.fr . Thank you very much and excuse me for derangement