Motorola MG8702 User Manual page 52

Select the tab for the band you want to scan, 2.4 GHz or 5 GHz. Then
click the "Scan Wireless APs" button at the bottom of the page. This
will pop up the wireless Scan Results table:
Note that you may need to scroll down to see all neighboring networks.
For the 2.4 GHz band:
Look at the Channel column. This shows the channels that your
neighboring networks use. Available channels are 1 through 11. Many
installations use only channels 1, 6 or 11, because ideally wireless devices
should be separated by 5 channels.