Guard Interval - NETGEAR WNAP210 User Manual

Channel/Frequency
The wireless channel in use can be from 1 to 11 for the United States and Canada, or 1 to 13
for Europe and Australia. The default is Auto.
Do not change the wireless channel unless you experience interference (shown by lost
connections or slow data transfers). Should this happen, you might need to experiment with
different channels to see which is the best. You can select the Auto channel option to have
the access point intelligently pick the channel with the least interference. When selecting or
changing channels, bear these points in mind:
Access points use a fixed channel. You can select the channel used. This allows you to
•
select a channel that provides the least interference and best performance. In the United
States and Canada, 11 channels are available.
If you are using multiple access points, it is better if adjacent access points use different
•
channels to reduce interference. The recommended channel spacing between adjacent
access points is 5 channels (for example, use channels 1 and 6, or 6 and 11).
Wireless stations usually scan all channels, looking for an access point. If more than one
•
access point can be used, the one with the strongest signal is used. This can happen only
when the access points use the same SSID.
MCS Index/Data Rate
You can select the transmit data rate of the wireless network. Depending on the band
selected, the set of rates varies. (When auto channel is enabled in the 802.11ng mode, then
the default channel width mode is 20 MHz. In this case, you cannot modify this parameter
unless you change to a static channel.) The possible supported data rates are:
Channel Width=20 MHz and Guard Interval=short (400 ms). Best, 7.2 Mbps, 14.4
•
Mbps, 21.7 Mbps, 28.9 Mbps, 43.3 Mbps, 57.8 Mbps, 65 Mbps, 72.2 Mbps, 14.44 Mbps,
28.88 Mbps, 43.33 Mbps, 57.77 Mbps, 86.66 Mbps, 115.56 Mbps, 130 Mbps, 144.44
Mbps.
Channel Width=40 MHz and Guard Interval=short. Best, 15 Mbps, 30 Mbps, 45 Mbps,
•
60 Mbps, 90 Mbps, 120 Mbps, 135 Mbps, 150 Mbps, 30 Mbps, 60 Mbps, 90 Mbps, 120
Mbps, 180 Mbps, 240 Mbps, 270 Mbps, 300 Mbps.
Channel Width. The following options are available:
•
20 MHz. This is the static, legacy mode. It gives the least throughput.
-
40 MHz. This is the static, high-throughput mode. Legacy clients cannot connect in
-
this mode.
20/40 MHz. This is the dynamic, compatibility mode. Legacy clients can connect to 20
-
MHz and 11n clients can connect to 40 MHz.

Guard Interval

The guard interval protects from interference from other transmissions. The default is Auto.
ProSafe Wireless-N Access Point WNAP210
Installation and Configuration
17