User's Manual Part 1

The following summarizes how the modulation settings operate using ad hoc mode.
Ad Hoc Initiator Ad Hoc Joiner Action Comments
11b-only 11b-only
Basic rates (1, 2, 5.5, or 11 Mbps)
11b-only
11g-only
Down scale basic rates, turn on protection* (1, 2, 5.5, or 11 Mbps)
11b and 11g
11b and 11g
Basic rates (1, 2, 5.5, or 11 Mbps)
11b and 11g
11g-only 11b-only
Does not apply to Intel(R) PRO/Wireless 2200BG adapter. For other cards - down scale basic rates, turn on protection* (1,
2, 5.5, or 11 Mbps)
11b and 11g
11g-only
Basic rates (1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps)
11g-only
11b and 11g
Upscale) basic rates (1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps)
11g-only
11b and 11g 11b-only
Basic rates, turn on protection* (1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps)
11b and 11g
11g-only
Downscale basic rates, turn on protection* depends on initiator (1, 2, 5.5, or 11 Mbps)
11b and 11g
11b and 11g
Basic rates, turn on protection* depends on initiator (1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or
54 Mbps)
11b and 11g
Note: (*) See
Viewing Adapter Advanced Settings in Windows - Use "RTS/CTS enable" (Default
setting) to avoid collisions in mixed mode environments where the 11g and 11b clients cannot
hear each other. Use "CTS-to-self enable" to improve performance in mixed mode environments
where 11g and 11b clients are in close proximity and can hear each other.
Ad Hoc Transmit Rates Overview
The following describes how the wireless preference modes operate using Ad Hoc mode. The
adapter can operate in three modes:
● Connect to 802.11g and 802.11b: mixed mode (default setting). The adapter will search
for either 11g or 11b access points using data transmit rates of 1, 2, 5.5, 6, 9, 11, 12, 18,
24, 36, 48, or 54 Mbps. This connection defaults to 11g access points. The Available
Networks list displays all 11b and 11g access points.
● Connect to 802.11g only: The adapter will search for a 11g access point only using data
transmit rates of 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps. The Available Networks
list displays only 11g access points.
● Connect to 802.11b only: The adapter will search for the best 11b and 11g access points
using data rates of 1, 2, 5.5, or 11 Mbps. The Available Networks list displays any 11b and
11g access point.
When different modulation settings are used in ad hoc mode, they influence the computer in the
following ways:
● It determines to which ad hoc network we are allowed to connect to.
● It determines whom we show in our scan list.