www.hypercable.fr
-
www.e-rake.us.com
29
TX Power:
Setting power of TX, default is Max.
Coverage Range:
The max. coverage range value will be changed by the channel BW, less channel
BW can transmit longer distance. Set the proper coverage range parameters is helpful to get the
stable link.
RTS Threshold:
“Request to send” is the optional mechanism used by the 802.11 wireless networking
protocol to reduce frame collisions introduced by the hidden node problem. Set the packet size to
trigger RTS/CTS enable. This is normally set in base station side only because the hidden station
problem does not exit from the perspective of the AP. RTS Threshold can be set between 256 - 2346
bytes.
A-MPDU Aggregation:
Aggregate MAC Service Data Unit. The concept of A-MPDU aggregation is to
join Multiple MPDU sub frames with a single leading PHY header. A key difference from A-MSDU
aggregation is that A-MPDU functions after the MAC header encapsulation process. This method
offer higher MAC throughput compare to A-MSDU.
A-MSDU Aggregation:
Aggregate MAC Protocol Data Unit. The concept of A-MSDU is to allow
multiple MSDUs to be sent to the same receiver concatenated in a single MPDU. This supporting
function for A-MSDU within 802.11n is mandatory at the receiver. Due to Destination Address (DA)
and sender Address (SA) in the sub-frame header must match to same receiver address (RA) and the
transmitter address (TA) in the MAC header, A-MSDU cannot be used for broadcast & multicast.
Short Guard Interval (SGI):
The guard interval is the space between symbols (characters)
being transmitted. Adding time between symbol transmissions allows these echoes and
reflections to settle in before the next symbol is transmitted. In normal 802.11 operations,
the guard interval is 800ns. In good link condition without interferences, enable the short
guard interval will short the time between symbol transmissions into 400ns to enhance the
efficiency of data transmission.
Transmission Antenna:
There are 3 antenna options for selection
Receiving Antenna:
Same as Transmission Antenna, there are 3 antenna options for selection too.
