Sontay RF--RXS--B, User Manual

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However, the real world presents many variables that result in less “ideal” wireless performance, such as
building obstructions and reflected signals.
Therefore, it is always preferable to conduct a thorough site survey in order to determine what is actually
happening to the wireless signals in the field. Before conducting a site survey, however, it may be helpful to
evaluate the different options available for the wireless hardware. The formula provides a straightforward
way to perform this evaluation and whether the desired transmission distance it can be achieved and so
make an informed decision when selecting SonNet devices for different wireless applications.
Attenuation Properties of Common Building Materials
Building Material 2.4 GHz Attenuation
Solid Wood Door 4.5cm 6 dB
Hollow Wood Door 4.5cm 4 dB
Interior Office Door w/Window 4.5cm /1.3cm 4 dB
Steel Fire/Exit Door 4.5cm 13 dB
Steel Fire/Exit Door 6.4cm 19 dB
Steel Rollup Door 3.8cm 11 dB
Brick 8.9cm 6 dB
Concrete Wall 45.7cm 18 dB
Cubical Wall (Fabric) 5.7m 18 dB
Exterior Concrete Wall 6.4cm 53 dB
Glass Divider 1.3cm 12 dB
Interior Hollow Wall 10.2cm 5 dB
Interior Hollow Wall 15.2cm 9 dB
Interior Solid Wall 12.7cm 14 dB
Marble 5.1cm 6 dB
Bullet-­‐Proof Glass 2.5cm 10 dB
Exterior Double Pane Coated Glass 2.5cm 13 dB
Exterior Single Pane Window 1.3cm 7 dB
Interior Office Window 2.5cm 3 dB
Safety Glass-­‐Wire 0.6cm 3 dB
Safety Glass-­‐Wire 2.5cm 13 dB