You can limit the range of your AirPort Extreme network to control who has access to it. By shortening the range of the network, only computers closest to the base station can join the network.
To shorten the range of the network:
Figure 1 Adjusting the Transmit Power slider
These settings correspond to 10, 33, 50, 75 and 100 percent of transmission power.
To shorten the range of the network:
- 1. Open AirPort Admin Utility (/Applications/Utilities/).
2. Select your base station, and click Configure.
3. Click the Show All Settings button.
4. In the AirPort pane, use the Transmit Power slider (Figure 1) to set the network range.
Figure 1 Adjusting the Transmit Power slider
These settings correspond to 10, 33, 50, 75 and 100 percent of transmission power.