Hey, this is Ameerah Mason from UK. I am a scientist. Recently, I have researched on radio communication. The series of Hytera radios develop signal range and audio quality with their modern antenna design and audio correction technologies. The areas with spotty coverage such as basements and pedways, users usually experience stationary interference during calls due to the weak signal. The Hytera digital radios automatically filter out background noise and enhance the distance of signal range for better user experience.