Propagation of broadcast signals into buildings at 762 MHz

The paper describes measurements of indoor reception of a 7 MHz OFDM signal transmitted at a center frequency of 762 MHz. The channel impulse response and the selectivity characteristics in the frequency domain and the spatial domain are measured. Furthermore, an indication is given of the effect of building attenuation. Building penetration loss is due to attenuation or shielding of the radio signals by walls, floors and ceilings. Using over 300 measurement runs in different rooms at different floors in 40 residential houses, apartment buildings and office buildings in Eindhoven, the building penetration loss can be determined. From the measurements, it can for example be determined that the typical building penetration loss in 90% of the buildings (macro-scale) will be smaller than 15 dB. If one decreases the height of an outdoor receiving antenna, the received signal power will usually decrease as well. This is partially due to shielding by buildings or other obstacles in the line-of-sight path. From the measurements, it appears that the combined height/building penetration loss compared with a 10 m outdoor antenna, will be less than 22 dB in 90% of the buildings.