Printronix Integrated Network Interface Card - Manual (Page 54)

Chapter 3 Network Configuration
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Antenna
Choose the antenna type. Diverse, Primary, and Aux are the
available settings.
Preamble
This is the preamble used in the wireless packets. It is
recommended to set to "Default" so that the NIC can detect the
correct preamble. The preamble is approximately 8 bytes of the
packet header generated by the AP is and attached to the packet
prior to transmission. The preamble length is transmission data rate
dependent. The "short" preamble is 50% shorter than the "long"
preamble. Transmit power is 0–100%. It must match the Access
Point's preamble configuration.
NOTE: Preamble is not applicable for 802.11g/b.
Power Mgmt Mode
Change the power management mode and adjust the power-save
sleep time (milliseconds). Selecting "Off" will turn the Power
Management Mode off and set the power-save sleep time to zero.
Transmit Power
Adjust RF transmit power in percent of full power.
International Mode
Set the International Mode option