Panasonic KX-TDA100 Installation Manual page 187

Object Material
Window Glass
Glass with wire net
Glass covered with
heat-resistant film
Floor Ferroconcrete
Partition Steel
Plywood, Glass
Column Ferroconcrete
Metal
Cabinet Steel
Wood
Transmission Tendency
Radio waves usually penetrate them.
Radio waves can penetrate them, but tend to be reflected.
Radio waves are weakened considerably when they
penetrate windows.
Radio waves can penetrate them, but the more iron there
is, the more radio waves are reflected.
Radio waves are reflected and rarely penetrate them.
Radio waves usually penetrate them.
Radio waves can penetrate them, but the more iron there
is, the more radio waves tend to be reflected or diffracted.
Radio waves tend to be reflected or diffracted.
Radio waves are usually reflected or diffracted, and rarely
penetrate them.
Radio waves can penetrate them, but they are weakened.
2.9.3 Site Planning
Installation Manual 187