62“ Using the Device Management Dialog BoxChanging the channel (radio frequency)The KX-HGC200 is preset to communicate using the radio frequencychannel 6 (2437 MHz). This preset channel can be changed to channel1 (2412 MHz) or 11 (2462 MHz) by using the Channel Number pull-downmenu.To communicate, all the nodes in a wireless network must be set thesame radio frequency channel.Setting a computer to the Master NodeThe KX-HGC200 is preset to automatically assign a Master Node (p. 73)to the network and in case of the Master Node being shut down, the othercomputer replaces the Master Node. However, when the Make this theMaster Node box is checked, the wireless computer is forced to be theMaster Node in the wireless network.Forward Error Correction (FEC)The FEC (Forward Error Correction) mechanism of the Whitecap™protocol allows your KX-HGC200 to correct error packets when a data istransmitted to the other wireless nodes and contributes to the higherthroughput. Normally, using of this function is strongly recommended.However, only when little interference of the radio frequency is beingmade and data transmission status is very well, by suspending thisfunction, the throughput may be improved somewhat, while thedata-transmission status becomes instable.Notes:≥To keep stable data-transmission status in a wireless network, acomputer that is always connected to the wireless network ispreferable to be set to the Master Node.≥Do not use this function for more than one computer.Note:When you disable this function for one node, be sure to disable thisfunction for all the nodes in the wireless network.