Moxa ANT-WSB-ANM-05 Manuel D’Utilisation

Page de 70
www.moxa.com         info@moxa.com
29
Understanding Industrial WLAN – IEEE 802.11
The precise alignment of the antennas is of considerable importance in establishing long range wireless 
connections. The more central the receiving antenna is located in the “ideal line” of the transmitting antenna, 
the better the actual performance and the effective bandwidth are. If the receiving antenna is outside of this 
ideal area, however, significant losses in performance will result.
The current signal quality over a long range wireless connection can be displayed on the device’s LEDs or in 
the Moxa monitor in order to help find the best possible alignment for the antennas. The more LED indicators 
means the stronger the connection.
In the Moxa monitor, the 
connection quality display is 
opened with the context menu 
once signal monitoring has 
commenced. The P2P dialog 
displays the absolute values for 
the current signal strength and the 
maximum value upon starting the 
measurement. The development of 
the signal strength over time and 
the maximum value are displayed.
Initially only one of the two 
antennas should be adjusted until 
a maximum value is achieved. This 
first antenna is then fixed and the 
second antenna is then adjusted 
to attain the best signal quality.