Panasonic WX-SA250P Operating Instructions Manual page 21

Mapping
X [Insertion loss]
Set the insertion loss of the area. If you know the materials / insertion loss of the room in which antennas are to be
installed, set the insertion loss in this settings screen. If unknown, use the default.
Important
Default setting: 1.5 dB
● If you know the insertion loss between areas, set 1/2 of the insertion loss as the insertion loss of the wall
for each area. If we use the figure below as an example, when the insertion loss between area 1 and area
2 is known to be 10 dB, set 5 dB for the insertion loss of the lower side of area 1 and also set 5 dB for the
insertion loss of the upper side of area 2.
The following table shows examples of the transmission losses of building materials.
Material (thickness)
Partition material
Exterior wall
Autoclaved lightweight concrete (100 mm)
Heat insulation material
Wood panel (15 mm)
Plaster board (7 mm)
Brick (60 mm)
Slate (11 mm)
Heat rejection film
21
1900 MHz
3.1 dB
0.2 dB
1.1 dB
4.0 dB
9.3 dB
23.8 dB