What is publice channel for wireless connectivity?

Dear friend there are many channels used in different countries with different frequency bands.The exact amount of channels depends upon your particular wireless router or access point (AP) and also what region of the World the device is set to. Some APs will only display8 or9 channels: typically channels,,,,,,,, and sometimes. Keep in mind, these channels don’t overlap unless you use larger channel widths.Some APs support even more channels (up to more) with some limitations.