Atop Smart Security Server
IS150
User Manual V1.0
37
and 11 are the non-overlapping channels for 2.4 GHz, Figure 4.26. Again, you can use
“Scan
network”
to see which channels are already occupied.
Bandwidth
: when 40 MHz is used, IS150 will double the channel width to 40 MHz as compared
to the standard 20 MHz to transmit its data; this is not recommended for 802.11b/g/n since it will
leave only one non-overlapping channel for other APs. HT40 (40 MHz), is recommended for
802.11a/n because it offers a wider frequency range and it is easier for IS150 to find empty
channels as well.
Figure 4.26
