System information

Command Line Reference
Wireless Interface Commands
preamble
This command sets the length of the signal preamble that is used at the start
of a data transmission.
Syntax
preamble [long | short-or-long]
• long - Sets the preamble to long.
• short-or-long - Sets the preamble according to the capability of
clients that are currently asscociated. Uses a short preamble if all
associated clients can support it, otherwise a long preamble is used.
Default Setting
Short-or-long
Command Mode
Interface Configuration (Wireless)
Command Usage
• Using a short preamble (96 microseconds) instead of a long preamble
(192 microseconds) can increase data throughput on the access point,
but requires that all clients can support a short preamble.
• Set the preamble to long to ensure the access point can support all
802.11b and 802.11g clients.
Example
HP420(if-wireless g)#preamble short-or-long
HP420(if-wireless g)#
transmit-limits
This command sets the reduction in transmit power required for an external
antenna to conform with local regulations.
Syntax
transmit-limits <low> <middle> <high>
low - The percentage of full power allowed for low radio channels.
(Options: 100, 90, 80, 70, 63, 56, 50, 45, 40, 35, 32, 28, 25, 22, 20, 18, 16,
14, 13, 11, 10)
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