Adaptive Frequency Hopping

All devices in the piconet (Bluetooth network) must be AFH-capable in order for AFH to work. When connecting and discovering devices, AFH is not available. Avoid making Bluetooth connections and discoveries during critical 802.11b communications. AFH for Bluetooth consists of four main sections:

AFH for Bluetooth consists of four main sections:

Channel Classification - A method of detecting an interference on a channel-by-channel basis, or pre-defined channel mask.
Link Management - Coordinates and distributes the AFH information to the rest of the Bluetooth network.
Hop Sequence Modification - Avoids interference by selectively reducing the number of hopping channels.
Channel Maintenance - A method for periodically re-evaluating the channels.

The Bluetooth radio in this device operates as a Class 2 device power class. The maximum output power is 2.5 mW and the expected range is 10 m (32.8 ft). A definition of ranges based on power class is difficult to obtain due to power and device differences, whether in open space or closed office space.