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The Band Setting is the configuration of the signal frequency to be used by the TV when connecting with other Wi-Fi® devices using the Screen Mirroring or Wi-Fi Direct™ feature.
NOTE: The recommended channel frequencies are CH1, CH6 and CH11. The default value of the Band Setting is CH11. If the picture quality is not good during Screen Mirroring or when using the Wi-Fi Direct connection, you can change it to CH1 or CH6.