Summary of Reflection and Transmission Loss Theory Wall Type Frequency Band Ref.loss Trans.Loss Brick,exterior 1.8-4GHz 10 dB 10 dB Concrete block,interior 2.4 GHz 5 dB Gypsum board,interior 3.4 GHz 4dB 2 dB Measured Exterior frame 800 MHz 4-7dB 5-6 GHz 9-18dB with metal siding 5 GHz 36 dB Brick,exterior 4-6 GHz 10 dB 14 dB Concrete block,interior 2.4/5GHz 5/5-10dB Gypsum board,interior 2.4/5GHz 3/5dB Wooden floors 5 GHz 9 dB Concrete floors 900 MHz 13 dB (Source:Prof.H.L.Bertoni) Summary of Reflection and Transmission Loss Wall Type Frequency Band Ref. loss Trans. Loss Brick, exterior 1.8 - 4 GHz 10 dB 10 dB Concrete block, interior 2.4 GHz 5 dB Gypsum board, interior 3.4 GHz 4 dB 2 dB Theory Measured Exterior frame with metal siding 800 MHz 5 - 6 GHz 5 GHz 4 - 7 dB 9 - 18 dB 36 dB Brick, exterior 4 - 6 GHz 10 dB 14 dB Concrete block, interior 2.4 / 5 GHz 5 / 5 - 10 dB Gypsum board, interior 2.4 / 5 GHz 3 / 5 dB Wooden floors 5 GHz 9 dB Concrete floors 900 MHz 13 dB (Source: Prof. H.L. Bertoni)