Dell TrueMobile 1180 User Manual page 59

Semi-open office environment range
Closed office environment range
Receiver sensitivity
Delay spread (at FER of <1%)
NOTES
1—The range of your wireless devices can be affected when the antennas are placed near metal surfaces and solid high-
density materials.
2—Range is also affected by obstacles in the signal path (of the radio) that may either absorb or reflect the radio signal.
3—In open office environments, the absence of physical obstructions between antennas improves the range because
there is a clear line-of-sight.
4—A semi-open office environment is one in which the work area is divided by short walls that are above the level of the
desk top; antennas are at desk top level.
5—A closed office environment is one in which the work areas are separated by floor-to-ceiling walls.
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59 m 74 m
(194 ft) (244 ft)
29 m 36 m
(96 ft) (119 ft)
–85 dBm –88 dBm
›250 ns ›300 ns
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90 m 115 m
(300 ft) (375 ft)
40 m 50 m
(130 ft) (165 ft)
–91 dBm –94 dBm
400 ns 500 ns
information.