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Unfortunately James is misunderstanding DFS with the question you are asking.
eeros all have to use the same channels so they can communicate with one another wirelessly. Automatic Channel Selection (ACS) is what determines which channels to use across the two or three radios on your eeros in your network. You and your neighbours networks are probably picking channel 1 due to non-wifi interference being detected on channel 6 and 11.
Dynamic Frequency Selection (DFS) is a feature that allows the 5Ghz radios to use channels shared with Weather Radars. 3rd generation eeros recently got support to use DFS channels in some regions. DFS is likely unrelated to the question you are asking.