In this case, we consider 2.4 GHz as the worst case due to increased free space propagation in that band. Table 9 lists the minimum required separation for two APs with 20 MHz minimum center frequency separation. This provides an additional 15-dB reduction in coupling. The interference target is typically recommend to be -85 dBm to ensure that no channel bandwidth degradation occurs and all data rates are available. However, in HD WLANs this may not be possible depending on the number of channels in use, so -75 dBm is sometimes used as a compromise between increased capacity and reduced peak performance.
In this case, we consider 2.4 GHz as the worst case due to increased free space propagation in that band. Table 9 lists the minimum required separation for two APs with 20 MHz minimum center frequency separation. This provides an additional 15-dB reduction in coupling. The interference target is typically recommend to be -85 dBm to ensure that no channel bandwidth degradation occurs and all data rates are available. However, in HD WLANs this may not be possible depending on the number of channels in use, so -75 dBm is sometimes used as a compromise between increased capacity and reduced peak performance.