Hello,
It should be. Why? Because you can program the second router to work with the first one via IP information. The IP packets won't distinguish between a wire and an antenna.
You will most likely need to program the device via a wire cable to a computer, and you will have to set the IP number of the wan side to be in the same subnet as the first one. You might have to use the IP number of the first as the gateway number on the second.
Now, I am not certain how to configure a roaming device to switch from one to the other as you walk out of range of the first one. That requires some study on my part.
Christian
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