This study proposes a model, based on the generalised K (GK) distribution, for identifying the reverberating chamber (RC) propagation channel profiles. Following this rationale, a parameter, given by a proper combination of GK parameters, is not only able to clearly distinguish between line-of-sight (LOS) and non-line-of-sight conditions, but it is also capable of providing a better granularity within these two macro groups (i.e. distinguishing the clear LOS condition from the near LOS one, that typically applies when an object partially shadows the link). Experiments undertaken over a large set of measurements accomplished by emulating different propagation channel conditions at the RC of the Universita di Napoli Parthenope (formerly Istituto Universitario Navale, IUN) confirm the soundness of the model and the effectiveness of the proposed parameter.