3Com 3CRWX120695A Reference Manual page 131

Figure 5 Create RF Obstacle Dialog Box
1 In the Description box, type a description for the RF obstacle (1 to 60
characters, with no tabs).
2 In the Obstacle Type list, select the material of which the RF obstacle is
made.
Select Other if the material is not listed. This allows you to create your
own obstacle type.
3 In the Attenuation Factor boxes, specify the attenuation factor for
802.11a and 802.11b/g technology (0 to 100 dB). The default is the
typical attenuation factor for the material chosen.
4 Click Finish to save the changes and close the dialog box.
If you created RF obstacles for all objects in a layer, all objects in the
layer are converted into separate RF obstacles.
If you created RF obstacles for an area, all objects in the area are
converted into separate RF obstacles.
If you created RF obstacles for multiple selected objects, all objects you
selected are converted into separate RF obstacles.
If you created RF obstacles for grouped objects, each grouped object is
converted into a single RF obstacle.
Specifying the RF Characteristics of a Floor 131