TRENDnet TEW-672GR - Wireless Router User Manual page 33

HT Physical Mode
In HT (High Throughput) Physical mode setting allow for control of the 802.11n wireless environment.
Operating Mode
Mixed Mode
Green Field
Mixed Mode:
In this mode packets are transmitted with a preamble compatible with the legacy 802.11a/g, the rest of
the packet has a new format. In this mode the receiver shall be able to decode both the Mixed Mode
packets and legacy packets.
Green Field:
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel BandWidth:
Set channel width of wireless radio.
20
20/40
20 Channel Width = 20 MHz
20/40 Channel Width = 20/40 MHz
Guard Interval:
Support Short/Long GI, the purpose of the guard interval is to introduce immunity to propagation delays,
echoes and reflections, to which digital data is normally very sensitive.
Long
Auto
Long Guard Interval, 800 nsec
Short Guard Interval, 400 nsec
MCS:
Fix MCS rate for HT rate.
0-15
The Modulation and Coding Scheme (MCS) is a value that determines the modulation, coding and
number of spatial channels.
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