User's Manual

APPENDIX D
RADIO CONFIGURATION
Revised: 6 Sep 11 APX D-1 EST P/N AA107A
195Ea FREQUENCY OF OPERATION
In a wireless Ethernet network all of the ESTeem Model 195Ea’s must be set
to the same radio frequency of operation or channel. Listed on the right is a
table showing the channel and corresponding frequency of operation. The
frequency of operation is selectable when configuring the mode of operation of
the 195Ea (reference Chapter 3). See Figure 1.
RF COMMUNICATIONS DATA RATE
The RF data rate of the Model 195Ea can be programmed for operation at 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps. The RF data
rate can be set for a fixed rate or a specific range that is dynamically scaled by the Model 195Ea from monitoring the received
signal quality. The Model 195Ea can communicate with multiple 195Ea wireless modems at different data rates for each device.
Dynamic scaling means that the Model 195Ea will operate at the highest RF data rate that is programmed into unit. If the received
data quality drops below the required minimums for reliable communications the Model 195Ea will reduce the data rate to the next
lowest step to increase signal quality. Conversely if the signal quality increases above the minimums the Model 195Ea will increase
the RF data rate the next highest level.
SETTING RF POWER LEVEL
The ESTeem Model 195Ea peak power is adjustable in output power from 250mW to 1 Watt. The output power is adjusted on the
Advanced Menu>Wireless LAN Settings>Wlan0 Device screen (Figure 3) of the Web Configuration Manager. Select the value
and press the Save Settings button.
Figure 1: RF Channel Selection
Channel Number
Frequency
149
5745 MHz
150
5750 MHz
151
5755 MHz
152
5760 MHz
153
5765 MHz
154
5770 MHz
155
5775 MHz
156
5780 MHz
157
5785 MHz
158
5790 MHz
159
5795 MHz
160
5800 MHz
161
5805 MHz
162
5810 MHz
163
5815 MHz
164
5820 MHz
165
5825 MHz