It look like based on prior information either band can be used for backhaul and the router chooses the better one. We don't have clear answers yet for other parts of my question.
Would appreciate it if Wilson could reply to the following recent query. Thanks.
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Wilson:
Can you explain the backhaul portion of the technology? For wireless connections between router and node, does it use the 5 or 2.4 GHz? For the node, is it effectively a repeater and so the throughput is cut by half? I assume that there will be no throughput penalty with wired backhaul, is that correct?