Wireless Communication Range - Proxim ORINOCO AP-600B User Manual

Wireless Communication Range

The range of the wireless signal is related to the composition of objects in the radio wave path and the transmit rate of
the wireless communication. Communications at a lower transmit range may travel longer distances. The range values
listed in the Communications Range Chart are typical distances as calculated by Proxim's development team for
FCC-certified products. These values provide a rule of thumb and may vary according to the actual radio conditions at
the location where the product is used.
The range of your wireless devices can be affected when the antennas are placed near metal surfaces and solid
high-density materials. Range is also impacted due to "obstacles" in the signal path of the radio that may either absorb
or reflect the radio signal.
In Open Office environments, antennas can "see" each other (no physical obstructions between them). In Semi-open
Office environments, workspace is divided by shoulder-height, hollow wall elements; antennas are at desktop level. In
a Closed Office environment, solid walls and other obstructions may affect signal strength.
The following tables show typical range values for various environments for FCC-certified products (range may differ
for products certified in other regulatory domains).
AP-600a
Range 54 Mbits/s
Open Office 44 m
(144 ft.)
Semi-Open Office 29 m
(95 ft.)
Closed Office 21 m
(69 ft.)
Receiver Sensitivity -69 dBm
Table C-1 AP-600a: 802.11a Wireless communication ranges
1 2 7 ( 1 2 7 (
1 2 7 ( 1 2 7 (
The typical range values for 2X Turbo mode are similar to the values listed above. For example, the operating
range at 108 Mbits/sec in 2X Turbo mode is similar to the operating range at 54 Mbits/sec in 802.11a mode.
AP-600b
Range 11 Mbits/s
Open Office 253 m
(830 ft.)
Semi-Open Office 129 m
(423 ft.)
Closed Office 69 m
(226 ft.)
Receiver Sensitivity -82 dBm
Table C-2 AP-600b: 802.11b Wireless communication ranges
54 Mbits/s 36 Mbits/s 24 Mbits/s
67 m 102 m 155 m
(220 ft.) (335 ft.) (508 ft.)
42 m 60 m 85 m
(138 ft.) (197 ft.) (279 ft.)
28 m 37 m 49 m
(92 ft.) (121 ft.) (161 ft.)
-73 dBm -77 dBm -81 dBm
5.5 Mbits/s 2 Mbits/s 1 Mbits/s
347 m 475 m 650 m
(1138 ft.) (1558 ft.) (2132 ft.)
168 m 220 m 286 m
(551 ft.) (722 ft.) (938 ft.)
86 m 107 m 132 m
(282 ft.) (351 ft.) (433 ft.)
-85 dBm -88 dBm -91 dBm
Specifications
18 Mbits/s 12 Mbits/s 9 Mbits/s
212 m 261 m 290 m
(695 ft.) (856 ft.) (951 ft.)
111 m 132 m 145 m
(364 ft.) (433 ft.) (475 ft.)
61 m 71 m 76 m
(200 ft.) (233 ft.) (250 ft.)
-84 dBm -86 dBm -87 dBm
6 Mbits/s
321 m
(1053 ft.)
158 m
(518 ft.)
82 m
(269 ft.)
-88 dBm
132