VDSL/ADSL2+ Dual Band AC1600 Gigabit Gateway with VoIP – NF18ACV
UG01040 v 1.04 December 2018
Extra Advanced Wireless Settings for 2.4 GHz only when: 802.11n/EWS = Disabled
When Disabled is selected for the 802.11n/EWC setting three additional settings become available only for the 2.4 GHz channel.
For 54g mode, you can select Automatic, 802.11g Performance, or 802.11b Only. This option is
only visible when 802.11n mode is set as Disabled.
When set to Automatic, the gateway will use RTS/CTS to improve the 802.11g performance in
802.11 mixed environments.
When set to Disabled, the 802.11g performance will be maximized under most conditions while
the other 802.11 modes (802.11b, etc.) will be secondary.
This option is only visible when 802.11n mode is set as Disabled.
If you are not using any 802.11b devices in your network, set the Preamble Type to Short for
optimum performance.
The Long Preamble type should be used when both 802.11g and 802.11b devices exist on your
network.
Preamble Type defines the length of the Cyclic Redundancy Check (CRC) block for
communication between the gateway and wireless clients. The preamble consists of the
Synchronization and Start Frame Delimiter (SFD) fields.
The sync field is used to indicate the delivery of a frame to wireless stations, to measure frequency
of the radio signal, to perform corrections if needed.
The SFD at the end of the Preamble is used to mark the start of the frame.
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