Ovislink OV804WV User Manual page 153

each other must use the same SSID. Several access
points can be set up using the same SSID so that wireless
stations can move from one location to another without
losing connection to the wireless network. The OV804WV
operates in Infrastructure mode. It controls network
access on the wireless interface in its broadcast area. It
allows access to the wireless network to devices using the
correct SSID after a negotiation process takes place. By
default the OV804WV broadcasts its SSID so that any
wireless station in range can learn the SSID and ask
permission to associate with it. Many wireless adapters
are able to survey or scan the wireless environment for
access points. An access point in Infrastructure mode
allows wireless devices to survey that network and select
an access point with which to associate. You may disable
SSID broadcasting in the Web manager's wireless menu.
4.5.2.2 Wireless Standard
Wireless standard includes 802.11a, 802.11b, 802.11g, and
802.11n.
IEEE 802.11b expanded on the original 802.11 standard in July
1999, creating the 802.11b specification. 802.11b supports
bandwidth up to 11 Mbps, comparable to traditional Ethernet.
802.11b uses the same unregulated radio signaling frequency
(2.4 GHz) as the original 802.11 standard. Vendors often prefer
using these frequencies to lower their production costs. Being
unregulated, 802.11b gear can incur interference from
microwave ovens, cordless phones, and other appliances
using the same 2.4 GHz range. However, by installing 802.11b
gear a reasonable distance from other appliances, interference
can easily be avoided.
In 2002 and 2003, WLAN products supporting a newer
standard called 802.11g emerged on the market. 802.11g
attempts to combine the best of both 802.11a and 802.11b.
802.11g supports bandwidth up to 54 Mbps, and it uses the 2.4
GHz frequency for greater range. 802.11g is backwards
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