Operation Manual
VigorAP 902 User’s Guide 
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This page is to determine which algorithm will be selected for wireless transmission rate. 
Available settings are explained as follows: 
Item Description 
Channel Width 
20 MHz- the AP will use 20MHz for data transmission and 
receiving between the AP and the stations. 
Auto 20/40 MHz–the AP will scan for nearby wireless AP, 
and then use 20MHz if the number of AP is more than 10, or 
use 40MHz if it's not. 
Auto 20/40/80 MHz– the AP will use 20MHz or 40MHz or 
80MHz for data transmission and receiving according to the 
station capability. Such channel can increase the performance 
for data transmission. 
Tx Power 
The default setting is the maximum (100%). Lowering down 
the value may degrade range and throughput of wireless. 
Rate Adaptation 
Algorithm 
Wireless transmission rate is adapted dynamically. Usually, 
performance of “new” algorithm is better than “old”. 
Fragment Length 
Set the Fragment threshold of wireless radio. Do not modify
default value if you don’t know what it is, default value is
2346.
RTS Threshold 
Minimize the collision (unit is bytes) between hidden stations 
to improve wireless performance. 
Set the RTS threshold of wireless radio. Do not modify default










