6
Chapter 2: Planning Your Wireless Antenna Coverage
High Gain 9dBi Omni-Directional Antenna
Distance Calculations
You can use the tables below to determine how you want to place the Antenna in relation to the access point to
client device or between the two access points.
As you can see, the higher the transmit data rate, the shorter the coverage distance. Therefore, when a client
device moves further away from an access point, the data rate will fall back to a lower data rate.
*To obtain these calculations, we inserted the specifications of the access point into the formula above. We use 9dBi peak
antenna gain and assume 0dBi antenna gain at the client device. Link budget is set to 10dB to include radio wave attenuations
from different types of objects in the path (the actual value may vary).
Table 1: Coverage Distance from
Access Point to Client Devices*
Data Rate
11 Mbps
54 Mbps
Distance
0.88 km
0.12 km
Distance
0.55 mile
0.078 mile
Table 2: Coverage Distance from
Access Point to Access Point*
Data Rate
11 Mbps
54 Mbps
Distance
2.49 km
0.35 km
Distance
1.56 mile
0.22 mile
