Draytek Vigor2920n User's Guide download pdf (Page 274)

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Vigor2920 Series User’s Guide

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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 Burst). 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

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Draytek Vigor2920n User's Guide Page 274

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