Motorola RD5000, Руководство интегратора

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Wireless Applications 5 - 21
Transmit Power
The
Transmit Power
drop-down list contains different options for Ad-Hoc and Infrastructure mode. Automatic (i.e.,
use the current AP settings) and Power Plus (use higher than the current AP settings) are available for
Infrastructure
mode.
Adjusting the radio transmission power level enables the user to expand or confine the transmission area with
respect to other wireless devices that could be operating nearby. Reducing coverage in high traffic areas improves
transmission quality by reducing the amount of interference in that coverage area.
Figure 5-26
Transmit Power Dialog Box (Infrastructure Mode)
Figure 5-27
Transmit Power Dialog Box (Ad-Hoc Mode)
Click
Next
to display the
Battery Usage
dialog box.
Table 5-16
Transmit Power Dialog Box (Infrastructure Mode)
Field Description
Automatic Select
Automatic
(the default) to use the AP power level.
Power Plus Select
Power Plus
to set the reader transmission power one level higher than the level set
for the AP.
Table 5-17
Power Transmit Options (Ad-Hoc Mode)
Field Description
Full Select
Full
power for the highest transmission power level. Select
Full
power when operating in
highly reflective environments and areas where other devices could be operating nearby, or
when attempting to communicate with devices at the outer edge of a coverage area.
30 mW Select
30 mW
to set the transmit power level to 30 mW.
15 mW Select
15 mW
to set the transmit power level to 15 mW.
5 mW Select
5 mW
to set the transmit power level to 5 mW.
1 mW Select
1 mW
for the lowest transmission power level. Use this level when communicating with
other devices in very close proximity, or in instances where little or no radio interference is
expected from other devices.