Gemtek Systems WL-299 series User Manual page 10

Tx rate: The transmit rate identifies the preferred data transmission speed of
the Wireless Ethernet Adapter. Transmissions at faster rates allow for higher
data throughput and quicker network response times. However, transmissions
at lower rates are usually more reliable and cover longer distances than the
higher rates.
Access Point Density: When connecting to the Access Point, it is generally
necessary to specify an Access Point Density. This
provides some control over handoff of clients during
roaming between Access Points. Three values, Low,
Medium, and High
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