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2.9 Connection of 2.4 GHz Portable Stations
178 Installation Manual
Object Material Transmission Tendency
Wall Concrete The thicker they are, the less radio waves
penetrate them.
Ferroconcrete Radio waves can penetrate them, but the more iron
there is, the more radio waves are reflected.
Window Glass Radio waves usually penetrate them.
Glass with wire net Radio waves can penetrate them, but tend to be
reflected.
Glass covered with heat-
resistant film
Radio waves are weakened considerably when
they penetrate windows.
Floor Ferroconcrete Radio waves can penetrate them, but the more iron
there is, the more radio waves are reflected.
Partition Steel Radio waves are reflected and rarely penetrate
them.
Plywood, Glass Radio waves usually penetrate them.
Column Ferroconcrete Radio waves can penetrate them, but the more iron
there is, the more radio waves tend to be reflected
or diffracted.
Metal Radio waves tend to be reflected or diffracted.
Cabinet Steel Radio waves are usually reflected or diffracted,
and rarely penetrate them.
Wood Radio waves can penetrate them, but they are
weakened.