Cisco AIR-PCM340 Installation And Configuration Manual page 77

Chapter 5 Advanced Configuration on Mac OS 9.x
Table 5-4
Parameter
Channel
Transmit Power
Short Preamble
OL-1377-01
RF Network Parameters (continued)
Description
Specifies which frequency your client adapter uses as the channel for
communications. These channels conform to the IEEE 802.11 Standard for
your regulatory domain.
• In infrastructure mode, this parameter is set automatically and cannot
be changed. The client adapter listens to the entire spectrum, selects the
best access point to associate to, and uses the same frequency as that
access point.
In ad hoc mode, the channel of the client adapter must be set to match
•
the channel used by the other clients with which you wish to
communicate.
Range: Dependent on regulatory domain
Example: 1 to 11 (2412 to 2462 MHz) in North America
Refer to Appendix A for a list of channel identifiers, channel
Note
center frequencies, and regulatory domains for each channel.
Defines the level at which your client adapter transmits power. This value
must not be higher than that allowed by your country's regulatory agency
(FCC in the U.S., DOC in Canada, ETSI in Europe, MKK in Japan, etc.).
When World Mode is enabled, only the transmit power levels supported by
the country of operation's regulatory agency are available.
Range: 1, 5, 15, 20, 30, 50, or 100 mW (30 mW is the maximum power
level supported by 340 series client adapters)
Default: The minimum level allowed by your country's regulatory agency
Note 15 mW is supported by 340 series client adapters only, and 20
mW is supported by 350 series client adapters only.
Reducing the transmit power level conserves battery power but
Note
decreases radio range.
Specifies if your client adapter uses short radio headers. However, the
adapter can use short radio headers only if the access point is also
configured to support them. Short radio headers improve throughput
performance; long radio headers ensure compatibility with clients and
access points that do not support short radio headers.
Default: On
Short Preamble
Off
On
Cisco Aironet Wireless LAN Adapters Installation and Configuration Guide for Mac OS
Configuring Your Client Adapter
Description
Prevents short radio headers from being used during
transmissions
Allows short radio headers to be used during
transmissions
5-13