Level Variability of Radio Signals Propagating Through Fire: Experimental measurements and results

Public protection and disaster relief (PPDR) communication systems play a crucial role in the avoidance and minimization of the damages caused by wildfires and tall building fires. These systems should have reliable coverage and high availability in emergency scenarios. Incidents due to the degradation by fire of these radiocommunication systems have been reported throughout their history; nonetheless, scientific characterization of this subject is still scarce. Most of the experimental results center on obtaining values of the mean attenuation and its dependency on the frequency but do not take into account the variability around the mean value.