Indoor coverage of the DVB-T transmitters in Munich

Some years ago the IRT developed a high resolution digital city model of Munich containing information on street widths and individual building heights. With these data and a powerful prediction model we calculated the indoor field strength for DVB-T transmitters in Munich. The IRT prediction method was intensively tested against mobile measurements in Munich, both in the VHF-range and in the 1.5-GHz-range, and proved to be reliable and accurate to predict coverage in urban areas. The IRT-method considers three-dimensional reflections at buildings and in this way, can simulate the multipath situation in the urban area quite well. With some modifications, the method can also be used for indoor coverage predictions. Based on these predictions, the portable indoor reception of the DVB-T transmitters is examined and the necessary transmitter power for city-wide indoor coverage can be derived. The results are also used to test the applicability of a much more simple prediction using rather coarse ground cover information instead of high resolution building data.