Draytek Vigor3200 Series, User Manual

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Vigor3200 Series User’s Guide 225
Long Preamble This option is to define the length of the sync field in an 802.11
packet. Most modern wireless network uses short preamble with
56 bit sync field instead of long preamble with 128 bit sync
field. However, some original 11b wireless network devices
only support long preamble. Check it to use
Long Preamble if
needed to communicate with this kind of devices.
Packet-OVERDRIVE This feature can enhance the performance in data transmission
about 40%* more (by checking
Tx Burs t). It is active only
when both sides of Access Point and Station (in wireless client)
invoke this function at the same time. That is, the wireless client
must support this feature and invoke the function, too.
Note: Vigor N61 wireless adapter supports this function.
Therefore, you can use and install it into your PC for matching
with Packet-OVERDRIVE (refer to the following picture of
Vigor N61 wireless utility window, choose
Enable for
TxBURST on the tab of Option ).
Note: * means the real transmission rate depends on the
environment of the network.
Rate Control
It controls the data transmission rate through wireless
connection.
Upload – Check Enable and type the transmitting rate for data
upload. Default value is 30,000 kbps.
Download – Type the transmitting rate for data download.
Default value is 30,000 kbps.