The IEEE 802.11 standard is coming from 1999. Since that time lots of research paper were born analyzing WiFi networks. However, until the recent years, WiFi devices and drivers were on closed source, so measurements could rely only on those features that the vendors offered for them. For such reason there could be hardly any research focusing on the bit level internals of WiFi transmissions. Today we already have better tools to access the WiFi devices. This paper presents measurements in real WiFi scenarios and shows what happens with the message bits on their flight. The paper also highlights that the implementation of WiFi devices are very different and using a single parameter set to model them is inappropriate and might be misleading. abstract environment.