User Manual

User’s Guide
22
case sensitive and can contain up to 32 alphanumeric
characters.
HT Physical Mode
Item Description
Operating Mode
Default: Mixed (Mixed, Green Field).
Mixed mode: In this mode the device transmits the
packets with preamble compatible legacy (802.11g), so
they can be decoded by legacy devices. The device
receives and decodes both Mixed Mode packets and
legacy packets.
Green Field mode: the device transmits HT packets
without legacy compatible part. But the device receives
and decodes both Green Field and legacy packets.
Channel Bandwidth
This option only works when selecting Band mode in
11b/g/n mixed mode. Click the radio button to choose
between 20 MHz or 20/40MHz. This option affects the
Phy data rate of radio. Please refer to the table below
MCS
It is Modulation Coding Scheme. The available options
are “Auto, 0, 1, …, 32”. It changes the modulation of
this device and effect the maximum Physical data rate.
We recommend “Auto” setting. For the details, please
refer to the table below.
Extension Channel
The “20/40” bandwidth mode uses 5 channels. For
example, selecting channel 7 and you can select 3 or
11 for extension channel. Choose the unused channel
for the extension channel.
The table below shows the relationship among Physical data rate, Bandwidth and Guard Interval.
Data
Rate
Mbps
MCS
Bandwidth = 20MHz Bandwidth = 40MHz
Short Guard
Interval
Long Guard
Interval
Short
Guard
Interval
Long
Guard
Interval
0 (1S) 7.2 6.5 15 13.5
1 14.4 13 30 27
2 21.7 19.5 45 40.5
3 28.9 26 60 54
4 43.3 39 90 81
5 57.8 52 120 108
6 65 58.5 135 121.5
7 72.2 65 150 135